[PR #11940/a47740c backport][3.13] Restore BodyPartReader.decode() as sync method, add decode_async() for non-blocking decompression

[bdraco]

(cherry picked from commit a47740c)

[codspeed-hq]

CodSpeed Performance Report

Merging this PR will not alter performance

_{Comparing patchback/backports/3.13/a47740c093dcc5291fb7e43788a9432b20093834/pr-11940 (a1571d2) with 3.13 (2b920c3)¹}

Summary

✅ 59 untouched benchmarks

Footnotes

1. No successful run was found on 3.13 (41f01ed) during the generation of this report, so 2b920c3 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.27%. Comparing base (41f01ed) to head (a1571d2).
⚠️ Report is 37 commits behind head on 3.13.

Additional details and impacted files

@@            Coverage Diff             @@
##             3.13   #11944      +/-   ##
==========================================
- Coverage   98.27%   98.27%   -0.01%     
==========================================
  Files         128      128              
  Lines       44382    44433      +51     
  Branches     2408     2412       +4     
==========================================
+ Hits        43617    43667      +50     
- Misses        589      590       +1     
  Partials      176      176              

Flag	Coverage Δ
CI-GHA	98.15% <100.00%> (-0.01%)	⬇️
OS-Linux	97.91% <100.00%> (+<0.01%)	⬆️
OS-Windows	95.64% <100.00%> (+<0.01%)	⬆️
OS-macOS	97.15% <100.00%> (-0.01%)	⬇️
Py-3.10.11	96.69% <100.00%> (+<0.01%)	⬆️
Py-3.10.19	97.18% <100.00%> (+<0.01%)	⬆️
Py-3.11.14	97.38% <100.00%> (+<0.01%)	⬆️
Py-3.11.9	96.88% <100.00%> (+<0.01%)	⬆️
Py-3.12.10	96.97% <100.00%> (+<0.01%)	⬆️
Py-3.12.12	97.46% <100.00%> (+<0.01%)	⬆️
Py-3.13.11	97.69% <100.00%> (-0.02%)	⬇️
Py-3.14.2	97.64% <100.00%> (+<0.01%)	⬆️
Py-3.14.2t	96.74% <100.00%> (+<0.01%)	⬆️
Py-3.9.13	96.59% <100.00%> (+0.01%)	⬆️
Py-3.9.25	97.08% <100.00%> (+<0.01%)	⬆️
Py-pypy3.11.13-7.3.20	96.90% <100.00%> (-0.01%)	⬇️
VM-macos	97.15% <100.00%> (-0.01%)	⬇️
VM-ubuntu	97.91% <100.00%> (+<0.01%)	⬆️
VM-windows	95.64% <100.00%> (+<0.01%)	⬆️

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