Python 3.15: sort allowlists, more small updates #15250

Job	Run time
stubtest: stdlib (macos-latest, 3.14)	24s
stubtest: stdlib (windows-latest, 3.14)	1m 22s
stubtest: stdlib (macos-latest, 3.12)	29s
stubtest: stdlib (macos-latest, 3.10)	47s
stubtest: stdlib (windows-latest, 3.11)	1m 45s
stubtest: stdlib (windows-latest, 3.13)	1m 13s
stubtest: stdlib (ubuntu-latest, 3.12)	37s
stubtest: stdlib (windows-latest, 3.15)	1m 51s
stubtest: stdlib (ubuntu-latest, 3.15)	48s
stubtest: stdlib (ubuntu-latest, 3.11)	44s
stubtest: stdlib (macos-latest, 3.11)	30s
stubtest: stdlib (ubuntu-latest, 3.13)	32s
stubtest: stdlib (ubuntu-latest, 3.14)	40s
stubtest: stdlib (macos-latest, 3.15)	1m 11s
stubtest: stdlib (ubuntu-latest, 3.10)	36s
stubtest: stdlib (windows-latest, 3.12)	1m 12s
stubtest: stdlib (macos-latest, 3.13)	25s
	15m 6s

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