Test

Bump actions/checkout from 5 to 6 #4718

Job	Run time
clippy (macos-15, --all-features)	3m 43s
clippy (ubuntu-latest, --all-features)	3m 12s
clippy (windows-latest, --no-default-features -F extensions)	5m 19s
rustfmt	15s
oldstable (ubuntu-22.04)	3m 7s
oldstable (windows-latest)	5m 12s
shellcheck	5s
test-matrix (ubuntu-22.04)	5m 3s
all-features (ubuntu-22.04)	5m 27s
oldstable (macos-15)	3m 42s
deno-checks	13s
test-matrix (macos-15)	6m 32s
all-features (macos-15)	7m 30s
test-matrix (windows-latest, --no-default-features -F extensions)	10m 29s
test	3s
	59m 52s

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