[PR #8495/549c95b9 backport][3.10] Shutdown logic: Only wait on handlers #3889

Job	Run time
Generate llhttp sources	6s
Linter	58s
Test (3.8, ubuntu, false)	8m 1s
Test (3.8, windows, false)	8m 20s
Test (3.8, Y, ubuntu, false)	7m 3s
Test (3.9, ubuntu, false)	6m 20s
Test (3.9, macos, false)	5m 13s
Test (3.9, windows, false)	8m 13s
Test (3.9, Y, ubuntu, false)	6m 21s
Test (3.10, ubuntu, false)	7m 5s
Test (3.10, macos, false)	5m 22s
Test (3.10, windows, false)	9m 16s
Test (3.10, Y, ubuntu, false)	6m 48s
Test (3.11, ubuntu, false)	7m 15s
Test (3.11, macos, false)	5m 41s
Test (3.11, windows, false)	7m 59s
Test (3.11, Y, ubuntu, false)	6m 41s
Test (3.12, ubuntu, false)	6m 52s
Test (3.12, macos, false)	5m 27s
Test (3.12, windows, false)	8m 53s
Test (3.12, Y, ubuntu, false)	6m 53s
Test (pypy-3.9, Y, ubuntu, false)	11m 48s
Test (ubuntu, 3.13, true, Y)	46s
check	6s
Pre-Deploy	0s
Tarball	0s
Build wheels on ${{ matrix.os }} ${{ matrix.qemu }}	0s
Deploy	0s
	2h 27m 27s

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