fix: macos-11 -> macos-12 (deprecation) #5990

Job	Run time
ubuntu-latest.amd64.py3.8.sdist-bundle	50s
manylinux.amd64.py3.6.build	4m 9s
manylinux.aarch64.py${{ matrix.config.version }}.build	0s
macos.amd64.py3.6.build	8m 23s
manylinux.amd64.py3.7.build	4m 10s
macos.amd64.py3.7.build	5m 10s
windows-2019.amd64.py3.6.build	15m 30s
manylinux.amd64.py3.8.build	4m 10s
macos.amd64.py3.8.build	5m 22s
windows-2019.amd64.py3.7.build	17m 16s
manylinux.amd64.py3.9.build	4m 7s
macos.amd64.py3.9.build	6m 27s
windows-2019.amd64.py3.8.build	17m 19s
manylinux.amd64.py3.10.build	4m 1s
macos.amd64.py3.10.build	5m 39s
windows-2019.amd64.py3.9.build	19m 42s
windows-2019.amd64.py3.10.build	19m 1s
manylinux.aarch64.py${{ matrix.config.version }}.test	0s
ubuntu-latest.amd64.py3.8.sdist-build-test	4m 51s
manylinux.amd64.py3.6.test	3m 20s
manylinux.amd64.py3.7.test	3m 16s
manylinux.amd64.py3.8.test	2m 23s
manylinux.amd64.py3.9.test	2m 35s
manylinux.amd64.py3.10.test	2m 26s
macos.amd64.py3.6.test	3m 14s
macos.amd64.py3.7.test	2m 58s
macos.amd64.py3.8.test	7m 46s
macos.amd64.py3.9.test	7m 40s
macos.amd64.py3.10.test	6m 28s
windows-2019.amd64.py3.6.test	7m 51s
windows-2019.amd64.py3.7.test	6m 54s
windows-2019.amd64.py3.8.test	6m 34s
windows-2019.amd64.py3.9.test	6m 51s
windows-2019.amd64.py3.10.test	6m 54s
	3h 43m 17s

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