Move URL parsing functions to their own module

[bdraco]

This is an internal change only

[codspeed-hq]

CodSpeed Performance Report

Merging #1360 will not alter performance

_{Comparing parse_module (b5723dc) with master (cb24592)}

Summary

✅ 83 untouched benchmarks

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.16%. Comparing base (cb24592) to head (b5723dc).
Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1360   +/-   ##
=======================================
  Coverage   96.16%   96.16%           
=======================================
  Files          29       30    +1     
  Lines        5581     5587    +6     
  Branches      346      346           
=======================================
+ Hits         5367     5373    +6     
  Misses        188      188           
  Partials       26       26           

Flag	Coverage Δ
CI-GHA	96.16% <100.00%> (+<0.01%)	⬆️
MyPy	45.45% <100.00%> (+0.06%)	⬆️
OS-Linux	99.34% <99.28%> (+<0.01%)	⬆️
OS-Windows	99.40% <99.28%> (+<0.01%)	⬆️
OS-macOS	99.08% <99.28%> (+<0.01%)	⬆️
Py-3.10.11	99.06% <99.28%> (+<0.01%)	⬆️
Py-3.10.15	99.30% <99.28%> (+<0.01%)	⬆️
Py-3.11.10	99.30% <99.28%> (+<0.01%)	⬆️
Py-3.11.9	99.06% <99.28%> (+<0.01%)	⬆️
Py-3.12.7	99.30% <99.28%> (+<0.01%)	⬆️
Py-3.13.0	99.30% <99.28%> (+<0.01%)	⬆️
Py-3.9.13	99.02% <99.28%> (+<0.01%)	⬆️
Py-3.9.20	99.25% <99.28%> (+<0.01%)	⬆️
Py-pypy7.3.16	99.30% <99.28%> (+<0.01%)	⬆️
Py-pypy7.3.17	99.33% <99.28%> (+<0.01%)	⬆️
VM-macos-latest	99.08% <99.28%> (+<0.01%)	⬆️
VM-ubuntu-latest	99.34% <99.28%> (+<0.01%)	⬆️
VM-windows-latest	99.40% <99.28%> (+<0.01%)	⬆️
pytest	99.34% <99.28%> (+<0.01%)	⬆️

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