security: pin GitHub Actions to SHA hashes #13

Job	Run time
Build documentation	34s
Test MSRV (1.70.0)	14s
Lint (clippy + rustfmt)	36s
Build release artifacts (windows-latest, x86_64-pc-windows-msvc, vsh-windows-x64.exe)	1m 45s
Test Features (--all-features)	1m 12s
Test Features (--features lean-runtime-checks)	15s
Cross-compile (x86_64-pc-windows-gnu)	2m 6s
Cross-compile (x86_64-unknown-linux-musl)	1m 40s
Cross-compile (aarch64-unknown-linux-gnu)	1m 49s
Build release artifacts (ubuntu-latest, x86_64-unknown-linux-gnu, vsh-linux-x64)	1s
Test Features (--no-default-features)	1m 9s
Cross-compile (x86_64-apple-darwin)	1m 2s
Cross-compile (aarch64-apple-darwin)	58s
Test (stable on windows-latest)	1m 29s
Test (nightly on ubuntu-latest)	3h 49m 35s
Build release artifacts (macos-latest, x86_64-apple-darwin, vsh-macos-x64)	1m 36s
Test (beta on windows-latest)	1m 45s
Test (nightly on macos-latest)	2m 29s
Test (stable on ubuntu-latest)	3h 47m 49s
Test (nightly on windows-latest)	1m 25s
Test (stable on macos-latest)	2m 15s
Test (beta on macos-latest)	2m 7s
Test (beta on ubuntu-latest)	3h 46m 39s
	11h 50m 30s

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