Optimize building query strings with MultiDict

[bdraco]

Most of the time aiohttp is passing in a MulitDict here. This will also help a bit for dict without Sequence, but as not a common of a case

For historical reasons we have support for sequences inside of MulitDict even though it shouldn't happen and it would be a breaking change to remove it

[codspeed-hq]

CodSpeed Performance Report

Merging #1256 will improve performances by 28.21%

_{Comparing optimize_for_multidict (e43a7a3) with master (ef4b498)}

Summary

⚡ 4 improvements
✅ 41 untouched benchmarks

Benchmarks breakdown

	Benchmark	master	optimize_for_multidict	Change
⚡	test_url_extend_query_existing_query_simple_query_dict	1,075.3 µs	843.9 µs	+27.41%
⚡	test_url_extend_query_simple_query_dict	1,055.5 µs	824.9 µs	+27.94%
⚡	test_url_make_with_query_mapping	1,047.8 µs	817.3 µs	+28.21%
⚡	test_url_make_with_query_sequence_mapping	5 ms	4 ms	+25.08%

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.84%. Comparing base (5c56ba2) to head (e43a7a3).
Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1256   +/-   ##
=======================================
  Coverage   95.83%   95.84%           
=======================================
  Files          27       27           
  Lines        5168     5174    +6     
  Branches      314      314           
=======================================
+ Hits         4953     4959    +6     
  Misses        189      189           
  Partials       26       26           

Flag	Coverage Δ
CI-GHA	95.82% <100.00%> (+<0.01%)	⬆️
MyPy	43.88% <100.00%> (+0.06%)	⬆️
OS-Linux	99.35% <100.00%> (+<0.01%)	⬆️
OS-Windows	99.41% <100.00%> (+<0.01%)	⬆️
OS-macOS	99.06% <100.00%> (+<0.01%)	⬆️
Py-3.10.11	98.97% <100.00%> (+<0.01%)	⬆️
Py-3.10.15	99.23% <100.00%> (+<0.01%)	⬆️
Py-3.11.10	99.23% <100.00%> (+<0.01%)	⬆️
Py-3.11.9	98.97% <100.00%> (+<0.01%)	⬆️
Py-3.12.7	99.23% <100.00%> (+<0.01%)	⬆️
Py-3.13.0	99.23% <100.00%> (+<0.01%)	⬆️
Py-3.8.10	98.92% <100.00%> (+<0.01%)	⬆️
Py-3.8.18	99.18% <100.00%> (+<0.01%)	⬆️
Py-3.9.13	98.92% <100.00%> (+<0.01%)	⬆️
Py-3.9.20	99.18% <100.00%> (+<0.01%)	⬆️
Py-pypy7.3.11	99.24% <100.00%> (+<0.01%)	⬆️
Py-pypy7.3.16	99.24% <100.00%> (+<0.01%)	⬆️
Py-pypy7.3.17	99.26% <100.00%> (+<0.01%)	⬆️
VM-macos-latest	99.06% <100.00%> (+<0.01%)	⬆️
VM-ubuntu-latest	99.35% <100.00%> (+<0.01%)	⬆️
VM-windows-latest	99.41% <100.00%> (+<0.01%)	⬆️
pytest	99.35% <100.00%> (+<0.01%)	⬆️

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