Bump actions/checkout from 4 to 5 in /.github/workflows #1587

Job	Run time
configure	7s
default (windows-latest)	15s
default (macos-latest)	5s
bindir (ubuntu-latest)	6s
default (ubuntu-latest)	5s
bindir (windows-latest)	13s
version (windows-latest)	12s
version (ubuntu-latest)	6s
bindir (macos-latest)	8s
nightly (macos-latest)	10s
nightly (ubuntu-latest)	10s
nightly (windows-latest)	17s
path-suggestions (ubuntu-latest)	59s
path-suggestions (macos-latest)	8s
path-suggestions (windows-latest)	13s
version (macos-latest)	9s
	3m 23s

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