MAINT: Add support for Python 3.13

[ansjmoody]

Description

Add support for Python 3.13. Remove some references to Python 3.8 and 3.9

Issue linked

#460

Checklist:

• [] Run unit tests and make sure they all pass
  - Run tests without Sherlock running
  - Run tests with Sherlock GRPC connection
• [] Check and fix style errors
  - pre-commit command line check
  - Problems tab in PyCharm
• [] Bench test new/modified APIs by using and modifying the code in the example for the API method
• [] Add new classes to rst files, located at: \doc\source\api
• [] Generate documentation
• [] Verify the HTML. It gets generated at: \doc\build\html.
  - Open index.html
  - Click on "API Reference" at the top.
  - Verify HTML for API changes.
• [] Check that test code coverage is at least 80% when Sherlock is running
• [] Make sure that the title of the pull request follows Commit naming conventions (e.g. feat: adding new PySherlock command)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 60.07%. Comparing base (2b562b9) to head (5d86bb3).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #481      +/-   ##
==========================================
- Coverage   60.25%   60.07%   -0.19%     
==========================================
  Files          23       21       -2     
  Lines        5032     5009      -23     
==========================================
- Hits         3032     3009      -23     
  Misses       2000     2000              

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