Fix the issue where the docs are built twice when there are no changes

[KasukabeDefenceForce]

📝 Description

Type: 🪲 bugfix | 🚀 feature | ☣️ breaking change | 🚦 testing | 📝 documentation | 🎢 infrastructure
This PR aims to fix the issue where the docs would build again when the "build-docs" label was added even when there were no changes in the PR.

Issue: #2868

Here is a sample run:
KasukabeDefenceForce#58

📌 Resources

Examples, notebooks, and links to useful references.

🚦 Testing

How did you test these changes?

• Testing pipeline
• Other method (describe)
• My changes can't be tested (explain why)

☑️ Checklist

• I requested two reviewers for this pull request
• I updated the documentation according to my changes
• I built the documentation by applying the build_docs label

Note: If you are not allowed to perform any of these actions, ping (@) a contributor.

[tardis-bot]

*beep* *bop*
Hi human,
I ran ruff on the latest commit (19d0f67).
Here are the outputs produced.
Results can also be downloaded as artifacts here.
Summarised output:

4	W293	[*] Blank line contains whitespace
1	E999	[ ] SyntaxError: Expected an expression

Complete output(might be large):

.github/workflows/build-docs.yml:7:4: E999 SyntaxError: Expected an expression
.github/workflows/build-docs.yml:60:1: W293 [*] Blank line contains whitespace
.github/workflows/build-docs.yml:66:1: W293 [*] Blank line contains whitespace
.github/workflows/build-docs.yml:78:1: W293 [*] Blank line contains whitespace
.github/workflows/build-docs.yml:81:1: W293 [*] Blank line contains whitespace
Found 5 errors.
[*] 4 fixable with the `--fix` option.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.60%. Comparing base (a1f621f) to head (19d0f67).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2871      +/-   ##
==========================================
- Coverage   69.97%   69.60%   -0.38%     
==========================================
  Files         216      216              
  Lines       16077    16077              
==========================================
- Hits        11250    11190      -60     
- Misses       4827     4887      +60     

☔ View full report in Codecov by Sentry.
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[tardis-bot]

*beep* *bop*
Hi human,
I ran benchmarks as you asked comparing master (a1f621f) and the latest commit (19d0f67).
Here are the logs produced by ASV.
Results can also be downloaded as artifacts here.

Significantly changed benchmarks:

All benchmarks:

Benchmarks that have stayed the same:

| Change   | Before [a1f621f6] <master>   | After [19d0f678]    | Ratio   | Benchmark (Parameter)                                                                                                               |
|----------|------------------------------|---------------------|---------|-------------------------------------------------------------------------------------------------------------------------------------|
|          | 591±100ns                    | 671±200ns           | ~1.14   | opacities_opacity.BenchmarkMontecarloMontecarloNumbaOpacities.time_photoabsorption_opacity_calculation                              |
|          | 43.1±30μs                    | 47.6±40μs           | ~1.10   | transport_montecarlo_interaction.BenchmarkTransportMontecarloInteraction.time_line_scatter                                          |
|          | 23.4±6μs                     | 21.1±5μs            | ~0.90   | transport_montecarlo_packet_trackers.BenchmarkTransportMontecarloPacketTrackers.time_generate_rpacket_last_interaction_tracker_list |
|          | 2.90±0.01ms                  | 2.57±0ms            | ~0.89   | opacities_opacity_state.BenchmarkOpacitiesOpacityState.time_opacity_state_initialize('scatter')                                     |
|          | 1.54±0.2μs                   | 1.36±0.4μs          | ~0.88   | transport_geometry_calculate_distances.BenchmarkTransportGeometryCalculateDistances.time_calculate_distance_line                    |
|          | 2.39±1μs                     | 1.92±1μs            | ~0.80   | transport_montecarlo_estimators_radfield_estimator_calcs.BenchmarkMontecarloMontecarloNumbaPacket.time_update_line_estimators       |
|          | 3.34±0.7μs                   | 3.63±0.4μs          | 1.09    | transport_montecarlo_vpacket.BenchmarkMontecarloMontecarloNumbaVpacket.time_trace_vpacket_within_shell                              |
|          | 7.52±2μs                     | 8.02±2μs            | 1.07    | transport_montecarlo_vpacket.BenchmarkMontecarloMontecarloNumbaVpacket.time_trace_vpacket_volley                                    |
|          | 3.18±0.6μs                   | 3.36±0.2μs          | 1.06    | transport_montecarlo_vpacket.BenchmarkMontecarloMontecarloNumbaVpacket.time_trace_bad_vpacket                                       |
|          | 541±100ns                    | 561±200ns           | 1.04    | opacities_opacity.BenchmarkMontecarloMontecarloNumbaOpacities.time_pair_creation_opacity_calculation                                |
|          | 1.67±0.01ms                  | 1.71±0.01ms         | 1.03    | transport_montecarlo_main_loop.BenchmarkTransportMontecarloMontecarloMainLoop.time_montecarlo_main_loop                             |
|          | 30.5±0.02μs                  | 30.9±0μs            | 1.01    | transport_montecarlo_packet_trackers.BenchmarkTransportMontecarloPacketTrackers.time_generate_rpacket_tracker_list                  |
|          | 2.07±0m                      | 2.07±0m             | 1.00    | spectrum_formal_integral.BenchmarkTransportMontecarloFormalIntegral.time_FormalIntegrator_functions                                 |
|          | 207±0.1ns                    | 208±0.1ns           | 1.00    | spectrum_formal_integral.BenchmarkTransportMontecarloFormalIntegral.time_intensity_black_body                                       |
|          | 2.69±0.5ms                   | 2.70±0.5ms          | 1.00    | transport_montecarlo_single_packet_loop.BenchmarkTransportMontecarloSinglePacketLoop.time_single_packet_loop                        |
|          | 6.17±1μs                     | 6.19±0.8μs          | 1.00    | transport_montecarlo_vpacket.BenchmarkMontecarloMontecarloNumbaVpacket.time_trace_vpacket                                           |
|          | 40.3±0.07s                   | 40.1±0.01s          | 0.99    | run_tardis.BenchmarkRunTardis.time_run_tardis                                                                                       |
|          | 1.08±0m                      | 1.06±0m             | 0.99    | run_tardis.BenchmarkRunTardis.time_run_tardis_rpacket_tracking                                                                      |
|          | 1.20±0μs                     | 1.19±0μs            | 0.99    | transport_geometry_calculate_distances.BenchmarkTransportGeometryCalculateDistances.time_calculate_distance_boundary                |
|          | 736±0.5ns                    | 727±0.3ns           | 0.99    | transport_montecarlo_interaction.BenchmarkTransportMontecarloInteraction.time_thomson_scatter                                       |
|          | 66.3±0.1ms                   | 64.2±0.2ms          | 0.97    | transport_montecarlo_packet_trackers.BenchmarkTransportMontecarloPacketTrackers.time_rpacket_trackers_to_dataframe                  |
|          | 551±100ns                    | 531±100ns           | 0.96    | opacities_opacity.BenchmarkMontecarloMontecarloNumbaOpacities.time_compton_opacity_calculation                                      |
|          | 4.18±0.04ms                  | 3.98±0.06ms         | 0.95    | opacities_opacity_state.BenchmarkOpacitiesOpacityState.time_opacity_state_initialize('macroatom')                                   |
|          | 46.2±20μs                    | 42.1±20μs           | 0.91    | transport_montecarlo_interaction.BenchmarkTransportMontecarloInteraction.time_line_emission                                         |

If you want to see the graph of the results, you can check it here