[PR #12106/8ab84c52 backport][3.14] Bound DNS cache

[patchback]

This is a backport of PR #12106 as merged into master (8ab84c5).

None

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.24%. Comparing base (9b63f4c) to head (afd3a63).
⚠️ Report is 222 commits behind head on 3.14.

Additional details and impacted files

@@            Coverage Diff             @@
##             3.14   #12116      +/-   ##
==========================================
- Coverage   98.24%   98.24%   -0.01%     
==========================================
  Files         129      129              
  Lines       45242    45282      +40     
  Branches     2450     2451       +1     
==========================================
+ Hits        44449    44488      +39     
  Misses        612      612              
- Partials      181      182       +1     

Flag	Coverage Δ
CI-GHA	98.12% <100.00%> (-0.01%)	⬇️
OS-Linux	97.88% <100.00%> (-0.01%)	⬇️
OS-Windows	95.59% <100.00%> (+<0.01%)	⬆️
OS-macOS	97.13% <100.00%> (+<0.01%)	⬆️
Py-3.10.11	96.67% <100.00%> (+<0.01%)	⬆️
Py-3.10.19	97.15% <100.00%> (+<0.01%)	⬆️
Py-3.11.14	97.39% <100.00%> (+<0.01%)	⬆️
Py-3.11.9	96.90% <100.00%> (-0.01%)	⬇️
Py-3.12.10	97.00% <100.00%> (+<0.01%)	⬆️
Py-3.12.12	97.48% <100.00%> (+<0.01%)	⬆️
Py-3.13.11	97.48% <100.00%> (+<0.01%)	⬆️
Py-3.13.12	96.98% <100.00%> (+<0.01%)	⬆️
Py-3.14.2	97.43% <100.00%> (+<0.01%)	⬆️
Py-3.14.3	96.93% <100.00%> (+<0.01%)	⬆️
Py-3.14.3t	96.76% <100.00%> (-0.01%)	⬇️
Py-pypy3.11.13-7.3.20	96.92% <100.00%> (+<0.01%)	⬆️
VM-macos	97.13% <100.00%> (+<0.01%)	⬆️
VM-ubuntu	97.88% <100.00%> (-0.01%)	⬇️
VM-windows	95.59% <100.00%> (+<0.01%)	⬆️

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[codspeed-hq]

Merging this PR will not alter performance

✅ 59 untouched benchmarks

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_{Comparing patchback/backports/3.14/8ab84c52fe58ef34794fa9b12f00b06e626adcc0/pr-12106 (afd3a63) with 3.14 (9b63f4c)}