GitHub CI: update olegtarasov/get-tag to v2.1 #771

Job	Run time
check	15s
Ubuntu / 3.12 regression tests	38s
check_docs	46s
Ubuntu / 3.8 unit tests	1s
build_docs	45s
MacOS / 3.12 regression tests	38s
Ubuntu / 3.9 unit tests	1s
Windows / 3.12 regression tests	18s
Ubuntu / 3.10 unit tests	33s
Ubuntu / 3.11 unit tests	31s
Ubuntu / 3.8 regression tests	22s
Ubuntu / 3.12 unit tests	1s
Ubuntu / 3.10 regression tests	31s
Ubuntu / 3.13.0-alpha - 3.13 unit tests	1s
Ubuntu / pypy-3.9 unit tests	1s
Ubuntu / 3.11 regression tests	41s
MacOS / 3.8 unit tests	1s
Ubuntu / 3.13.0-alpha - 3.13 regression tests	28s
MacOS / 3.9 unit tests	1s
Ubuntu / pypy-3.9 regression tests	33s
MacOS / 3.10 unit tests	30s
Ubuntu / 3.12 regression tests (docutils)	33s
MacOS / 3.11 unit tests	34s
Ubuntu / 3.12 regression tests (Sphinx)	33s
MacOS / 3.12 unit tests	34s
Ubuntu / 3.9 regression tests (Sphinx)	22s
MacOS / 3.13.0-alpha - 3.13 unit tests	20s
MacOS / pypy-3.9 unit tests	1s
Windows / 3.8 unit tests	1s
Windows / 3.9 unit tests	1s
Windows / 3.10 unit tests	1s
Windows / 3.11 unit tests	1s
Windows / 3.12 unit tests	1s
Windows / 3.13.0-alpha - 3.13 unit tests	1s
Windows / pypy-3.9 unit tests	1s
Ubuntu / 3.12 unit tests (Sphinx)	1s
Ubuntu / 3.9 unit tests (Sphinx)	1s
Update docs versions JSON	1s
check-tag	1s
publish-release	1s
publish-develop	1s
	10m 46s

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