Add Python 3.12 support, make small CI improvements

[wRAR]

No description provided.

[codecov-commenter]

Codecov Report

Merging #12 (077fc8d) into main (414671d) will not change coverage.
The diff coverage is 100.00%.

❗ Current head 077fc8d differs from pull request most recent head 5ad2a96. Consider uploading reports for the commit 5ad2a96 to get more accurate results

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #12   +/-   ##
=======================================
  Coverage   98.99%   98.99%           
=======================================
  Files           6        6           
  Lines         299      299           
=======================================
  Hits          296      296           
  Misses          3        3           

Files	Coverage Δ
url_matcher/example.py	98.18% <100.00%> (ø)
url_matcher/matcher.py	99.05% <ø> (ø)