perf: Avoid loading meta schema unnecessarily

[Stranger6667]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 92.85714% with 1 line in your changes missing coverage. Please review.

Project coverage is 85.61%. Comparing base (b2754fd) to head (d716eef).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
crates/jsonschema-referencing/src/registry.rs	92.85%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #697   +/-   ##
=======================================
  Coverage   85.61%   85.61%           
=======================================
  Files          92       92           
  Lines       14400    14408    +8     
=======================================
+ Hits        12328    12335    +7     
- Misses       2072     2073    +1     

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[codspeed-hq]

CodSpeed Performance Report

Merging #697 will improve performances by 49.47%

_{Comparing dd/skip-meta (d716eef) with master (b2754fd)}

Summary

⚡ 9 improvements
✅ 36 untouched benchmarks

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
⚡	try_new[draft 2019-09]	36.6 µs	27.3 µs	+34.03%
⚡	try_new[draft 2020-12]	37.3 µs	28 µs	+33.43%
⚡	try_new[draft 4]	34.7 µs	25.7 µs	+35.07%
⚡	try_new[draft 6]	36.2 µs	26.6 µs	+35.73%
⚡	try_new[draft 7]	38.3 µs	28.9 µs	+32.87%
⚡	try_with_resource[CITM]	51.1 µs	36.6 µs	+39.71%
⚡	try_with_resource[Fast]	35.1 µs	23.5 µs	+49.47%
⚡	try_with_resource[GeoJSON]	83.8 µs	64.5 µs	+29.99%
⚡	try_with_resource[Open API]	240.2 µs	207.2 µs	+15.94%