Significantly improve performance of the unquoter

[bdraco]

unsafe can only be extended ascii (0-255) so this check can be a bit cheaper as we can do char compares and avoid calling __Pyx_UnicodeContainsUCS4

[codspeed-hq]

CodSpeed Performance Report

Merging #1496 will improve performances by 85.67%

_{Comparing quoter___Pyx_UnicodeContainsUCS4 (e09fcff) with master (99079e3)}

Summary

⚡ 6 improvements
✅ 95 untouched benchmarks

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
⚡	test_unquoter_long_ascii	22.5 ms	12.1 ms	+85.67%
⚡	test_unquoter_long_pct	25.4 ms	15 ms	+69.81%
⚡	test_unquoter_short	288.6 µs	204.5 µs	+41.1%
⚡	test_parse_query_uncached[long]	25.4 ms	20.8 ms	+21.97%
⚡	test_parse_query_uncached[short]	2 ms	1.7 ms	+18.05%
⚡	test_path_safe_uncached	257.9 µs	232.1 µs	+11.12%

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.93%. Comparing base (99079e3) to head (e09fcff).
Report is 1 commits behind head on master.

❌ Your project status has failed because the head coverage (98.07%) is below the target coverage (100.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1496   +/-   ##
=======================================
  Coverage   98.92%   98.93%           
=======================================
  Files          32       32           
  Lines        6074     6087   +13     
  Branches      365      365           
=======================================
+ Hits         6009     6022   +13     
  Misses         62       62           
  Partials        3        3           

Flag	Coverage Δ
CI-GHA	98.93% <100.00%> (+<0.01%)	⬆️
MyPy	98.07% <ø> (ø)
OS-Linux	98.78% <100.00%> (+<0.01%)	⬆️
OS-Windows	98.82% <ø> (ø)
OS-macOS	98.56% <100.00%> (+<0.01%)	⬆️
Py-3.10.11	98.54% <100.00%> (+<0.01%)	⬆️
Py-3.10.16	98.74% <100.00%> (+<0.01%)	⬆️
Py-3.11.11	98.74% <100.00%> (+<0.01%)	⬆️
Py-3.11.9	98.54% <100.00%> (+<0.01%)	⬆️
Py-3.12.9	98.74% <100.00%> (+<0.01%)	⬆️
Py-3.13.2	98.74% <100.00%> (+<0.01%)	⬆️
Py-3.9.13	98.50% <100.00%> (+<0.01%)	⬆️
Py-3.9.21	98.70% <100.00%> (+<0.01%)	⬆️
Py-pypy7.3.16	98.69% <ø> (ø)
Py-pypy7.3.19	98.71% <ø> (ø)
VM-macos-latest	98.56% <100.00%> (+<0.01%)	⬆️
VM-ubuntu-latest	98.78% <100.00%> (+<0.01%)	⬆️
VM-windows-latest	98.82% <ø> (ø)
pytest	98.78% <100.00%> (+<0.01%)	⬆️

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