[StepSecurity] ci: Harden GitHub Actions #108

Job	Run time
build_linux (3.9)	1m 58s
build_windows (3.9)	24m 45s
build_linux (3.10)	1m 44s
build_windows (3.10)	16m 19s
build_linux (3.11)	2m 3s
build_windows (3.11)	16m 18s
build_linux (3.12)	2m 3s
build_windows (3.12)	18m 24s
build_linux (3.13)	2m 8s
build_windows (3.13)	24m 45s
test_linux (3.9, false, ubuntu-latest)	55s
test_linux (3.10, false, ubuntu-latest)	49s
test_linux (3.11, false, ubuntu-latest)	1m 1s
test_linux (3.12, false, ubuntu-latest)	1m 1s
test_linux (3.13, false, ubuntu-latest)	47s
test_windows (3.9, false, windows-2019)	3m 3s
test_windows (3.10, false, windows-2019)	1m 50s
test_windows (3.11, false, windows-2019)	2m 31s
test_windows (3.12, false, windows-2019)	3m 1s
test_windows (3.13, false, windows-2019)	2m 52s
	2h 8m 17s

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