Improve performance of converting URL to string

[bdraco]

Not sure if this is worth it or not, but the string convert method are a bit higher than everything else

Seems like 71%-3x speed up is worth it

Calling urllib's urlunsplit was quite a bit more expensive than expected as seen in the benchmarks.

[codspeed-hq]

CodSpeed Performance Report

Merging #1234 will improve performances by ×3.1

_{Comparing unsplit (9a6a736) with master (91fd78c)}

Summary

⚡ 3 improvements
✅ 35 untouched benchmarks

Benchmarks breakdown

	Benchmark	master	unsplit	Change
⚡	test_url_to_string	566.2 µs	329.5 µs	+71.86%
⚡	test_url_with_path_to_string	573.1 µs	314.2 µs	+82.43%
⚡	test_url_with_query_to_string	1,200.4 µs	381.1 µs	×3.1

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.78%. Comparing base (91fd78c) to head (9a6a736).
Report is 196 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1234   +/-   ##
=======================================
  Coverage   95.78%   95.78%           
=======================================
  Files          27       27           
  Lines        5097     5106    +9     
  Branches      302      306    +4     
=======================================
+ Hits         4882     4891    +9     
  Misses        189      189           
  Partials       26       26           

Flag	Coverage Δ
CI-GHA	95.76% <100.00%> (+<0.01%)	⬆️
MyPy	43.55% <100.00%> (+0.09%)	⬆️
OS-Linux	99.34% <100.00%> (+<0.01%)	⬆️
OS-Windows	99.40% <100.00%> (+<0.01%)	⬆️
OS-macOS	99.05% <100.00%> (+<0.01%)	⬆️
Py-3.10.11	98.95% <100.00%> (+<0.01%)	⬆️
Py-3.10.15	99.22% <100.00%> (+<0.01%)	⬆️
Py-3.11.10	99.22% <100.00%> (+<0.01%)	⬆️
Py-3.11.9	98.95% <100.00%> (+<0.01%)	⬆️
Py-3.12.7	99.22% <100.00%> (+<0.01%)	⬆️
Py-3.13.0	99.22% <100.00%> (+<0.01%)	⬆️
Py-3.8.10	98.91% <100.00%> (+<0.01%)	⬆️
Py-3.8.18	99.17% <100.00%> (+<0.01%)	⬆️
Py-3.9.13	98.91% <100.00%> (+<0.01%)	⬆️
Py-3.9.20	99.17% <100.00%> (+<0.01%)	⬆️
Py-pypy7.3.11	99.23% <100.00%> (+<0.01%)	⬆️
Py-pypy7.3.16	99.23% <100.00%> (+<0.01%)	⬆️
Py-pypy7.3.17	99.25% <100.00%> (+<0.01%)	⬆️
VM-macos-latest	99.05% <100.00%> (+<0.01%)	⬆️
VM-ubuntu-latest	99.34% <100.00%> (+<0.01%)	⬆️
VM-windows-latest	99.40% <100.00%> (+<0.01%)	⬆️
pytest	99.34% <100.00%> (+<0.01%)	⬆️

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