[3.11] Restore FlowControlDataQueue class

[bdraco]

We no longer use FlowControlDataQueue internally as it was removed in #9793. It was assumed (incorrectly) it was not used externally. At least aiodocker uses it. There may be others so we will restore it for 3.11.

Please note that it will go away permanently in 4.x so its will probably be best to vendor the code in this PR if you will still need this class when 4.x is released.

fixes aio-libs/aiodocker#918

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.02%. Comparing base (97be030) to head (af7fc1e).
Report is 2 commits behind head on 3.11.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             3.11    #9963   +/-   ##
=======================================
  Coverage   98.01%   98.02%           
=======================================
  Files         122      122           
  Lines       36796    36867   +71     
  Branches     4429     4438    +9     
=======================================
+ Hits        36067    36138   +71     
  Misses        545      545           
  Partials      184      184           

Flag	Coverage Δ
CI-GHA	97.91% <100.00%> (+<0.01%)	⬆️
OS-Linux	97.62% <100.00%> (+0.01%)	⬆️
OS-Windows	94.51% <100.00%> (+0.01%)	⬆️
OS-macOS	96.72% <100.00%> (+<0.01%)	⬆️
Py-3.10.11	96.58% <100.00%> (+<0.01%)	⬆️
Py-3.10.15	97.17% <100.00%> (+0.05%)	⬆️
Py-3.11.10	97.20% <100.00%> (+0.01%)	⬆️
Py-3.11.9	96.66% <100.00%> (+0.01%)	⬆️
Py-3.12.7	97.69% <100.00%> (+0.01%)	⬆️
Py-3.13.0	97.67% <100.00%> (+0.04%)	⬆️
Py-3.9.13	96.51% <100.00%> (+<0.01%)	⬆️
Py-3.9.20	97.05% <100.00%> (-0.03%)	⬇️
Py-pypy7.3.16	96.65% <100.00%> (+<0.01%)	⬆️
VM-macos	96.72% <100.00%> (+<0.01%)	⬆️
VM-ubuntu	97.62% <100.00%> (+0.01%)	⬆️
VM-windows	94.51% <100.00%> (+0.01%)	⬆️

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[codspeed-hq]

CodSpeed Performance Report

Merging #9963 will not alter performance

_{Comparing flow_control_data_queue_restore (af7fc1e) with 3.11 (97be030)}

Summary

✅ 43 untouched benchmarks

[bdraco]

I should have done this for 3.12 as well as the timeline for dropping it will be 4.x

[patchback]

Backport to 3.12: 💚 backport PR created

✅ Backport PR branch: patchback/backports/3.12/902e7b244c04ba112067362a9f10515830326fa2/pr-9963

Backported as #9965

🤖 @patchback
I'm built with octomachinery and
my source is open — https://github.com/sanitizers/patchback-github-app.

[bdraco]

Thankfully it forward ports cleanly