[PR #8634/c7293e19 backport][3.10] Backport #8620 as improvements to various type annotations

[patchback]

This is a backport of PR #8634 as merged into 3.11 (c7293e1).

Without test changes

[codecov]

Codecov Report

Attention: Patch coverage is 92.68293% with 3 lines in your changes missing coverage. Please review.

Project coverage is 97.63%. Comparing base (4815765) to head (0b88abf).
Report is 205 commits behind head on 3.10.

Files with missing lines	Patch %	Lines
aiohttp/test_utils.py	86.95%	1 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             3.10    #8635      +/-   ##
==========================================
+ Coverage   97.55%   97.63%   +0.07%     
==========================================
  Files         108      108              
  Lines       33687    33649      -38     
  Branches     4039     4012      -27     
==========================================
- Hits        32864    32853      -11     
+ Misses        600      591       -9     
+ Partials      223      205      -18     

Flag	Coverage Δ
CI-GHA	97.54% <92.68%> (+0.08%)	⬆️
OS-Linux	97.22% <92.68%> (+0.08%)	⬆️
OS-Windows	94.73% <85.71%> (+0.05%)	⬆️
OS-macOS	96.89% <92.68%> (+0.08%)	⬆️
Py-3.10.11	97.00% <92.68%> (+0.08%)	⬆️
Py-3.10.14	96.95% <92.68%> (+0.08%)	⬆️
Py-3.11.9	97.18% <92.68%> (+0.08%)	⬆️
Py-3.12.4	97.29% <92.68%> (+0.08%)	⬆️
Py-3.8.10	94.47% <85.71%> (+0.05%)	⬆️
Py-3.8.18	96.84% <92.68%> (+0.08%)	⬆️
Py-3.9.13	97.00% <92.68%> (+0.08%)	⬆️
Py-3.9.19	96.95% <92.68%> (+0.08%)	⬆️
Py-pypy7.3.16	96.53% <92.68%> (+0.08%)	⬆️
VM-macos	96.89% <92.68%> (+0.08%)	⬆️
VM-ubuntu	97.22% <92.68%> (+0.08%)	⬆️
VM-windows	94.73% <85.71%> (+0.05%)	⬆️

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