Use async fixture in testing docs (#8457) #3613

Job	Run time
Generate llhttp sources	12s
Linter	1m 3s
Test (3.8, ubuntu, false)	1s
Test (3.8, windows, false)	2s
Test (3.8, Y, ubuntu, false)	31s
Test (3.9, ubuntu, false)	1s
Test (3.9, macos, false)	1s
Test (3.9, windows, false)	1s
Test (3.9, Y, ubuntu, false)	1s
Test (3.10, ubuntu, false)	20s
Test (3.10, macos, false)	14s
Test (3.10, windows, false)	12s
Test (3.10, Y, ubuntu, false)	17s
Test (3.11, ubuntu, false)	18s
Test (3.11, macos, false)	9s
Test (3.11, windows, false)	10s
Test (3.11, Y, ubuntu, false)	14s
Test (3.12, ubuntu, false)	12s
Test (3.12, macos, false)	14s
Test (3.12, windows, false)	6s
Test (3.12, Y, ubuntu, false)	18s
Test (pypy-3.9, Y, ubuntu, false)	1s
Test (ubuntu, 3.13, true, Y)	1s
check	2s
Pre-Deploy	0s
Tarball	0s
Build wheels on ${{ matrix.os }} ${{ matrix.qemu }}	0s
Deploy	0s
	4m 41s

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