feat: Migrate to Python `3.10` #316

Job	Run time
manual-semver	0s
check-auto-tagging-will-work / check-auto-tagging-will-work	6s
search-tests	3m 25s
non-search-tests	2m 38s
integration-tests	1s
code-quality / python	1m 11s
build	3m 7s
tag / determine-next	0s
tag / semver	0s
tag / git	0s
release	0s
	10m 28s

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