Implement zero copy writes for the WebSocket writer #8462

Job	Run time
Linter	1m 21s
Generate llhttp sources	5s
Benchmark	4m 32s
Test (3.9, ubuntu, false)	3m 51s
Test (3.9, macos, false)	3m 20s
Test (3.9, windows, false)	4m 41s
Test (3.9, Y, ubuntu, false)	4m 3s
Test (3.10, ubuntu, false)	3m 33s
Test (3.10, macos, false)	2m 55s
Test (3.10, windows, false)	4m 44s
Test (3.10, Y, ubuntu, false)	4m 0s
Test (3.11, ubuntu, false)	3m 49s
Test (3.11, macos, false)	3m 6s
Test (3.11, windows, false)	4m 23s
Test (3.11, Y, ubuntu, false)	3m 56s
Test (3.12, ubuntu, false)	14m 41s
Test (3.12, macos, false)	14m 31s
Test (3.12, windows, false)	4m 59s
Test (3.12, Y, ubuntu, false)	14m 15s
Test (3.13, ubuntu, false)	13m 7s
Test (3.13, macos, false)	14m 16s
Test (3.13, windows, false)	5m 25s
Test (3.13, Y, ubuntu, false)	14m 21s
Test (pypy-3.9, Y, ubuntu, false)	7m 30s
Test (ubuntu, 3.14, true, Y)	3m 12s
check	2s
Pre-Deploy	0s
Tarball	0s
Build wheels on ${{ matrix.os }} ${{ matrix.qemu }}	0s
Deploy	0s
	2h 38m 38s

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