[PR #9883/a118114 backport][3.12] Fix improperly closed WebSocket connections generating a backtrace #8261

Job	Run time
Linter	53s
Generate llhttp sources	11s
Benchmark	3m 18s
Test (3.9, ubuntu, false)	3m 51s
Test (3.9, macos, false)	2m 59s
Test (3.9, windows, false)	4m 38s
Test (3.9, Y, ubuntu, false)	3m 16s
Test (3.10, ubuntu, false)	3m 46s
Test (3.10, macos, false)	2m 57s
Test (3.10, windows, false)	4m 50s
Test (3.10, Y, ubuntu, false)	3m 13s
Test (3.11, ubuntu, false)	3m 26s
Test (3.11, macos, false)	3m 2s
Test (3.11, windows, false)	4m 35s
Test (3.11, Y, ubuntu, false)	2m 56s
Test (3.12, ubuntu, false)	3m 55s
Test (3.12, macos, false)	3m 14s
Test (3.12, windows, false)	4m 45s
Test (3.12, Y, ubuntu, false)	3m 29s
Test (3.13, ubuntu, false)	3m 49s
Test (3.13, macos, false)	3m 6s
Test (3.13, windows, false)	4m 41s
Test (3.13, Y, ubuntu, false)	3m 41s
Test (pypy-3.9, Y, ubuntu, false)	7m 12s
Test (ubuntu, 3.14, true, Y)	2m 47s
check	4s
Pre-Deploy	0s
Tarball	0s
Build wheels on ${{ matrix.os }} ${{ matrix.qemu }}	0s
Deploy	0s
	1h 28m 34s

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