Bump actions/checkout from 4.1.6 to 4.1.7 #529

Job	Run time
ruby-versions / Generate Ruby versions	3s
test (ubuntu-latest, 2.3)	42s
test (ubuntu-latest, 2.4)	38s
test (ubuntu-latest, 2.5)	37s
test (ubuntu-latest, 2.6)	42s
test (ubuntu-latest, 2.7)	40s
test (ubuntu-latest, 3.0)	15s
test (ubuntu-latest, 3.1)	17s
test (ubuntu-latest, 3.2)	19s
test (ubuntu-latest, 3.3)	16s
test (ubuntu-latest, head)	19s
test (ubuntu-latest, jruby)	4m 16s
test (ubuntu-latest, jruby-head)	4m 23s
test (ubuntu-latest, truffleruby)	49s
test (windows-latest, 2.3)	1m 36s
test (windows-latest, 2.4)	1m 48s
test (windows-latest, 2.5)	2m 44s
test (windows-latest, 2.6)	3m 32s
test (windows-latest, 2.7)	3m 27s
test (windows-latest, 3.0)	1m 25s
test (windows-latest, 3.1)	1m 40s
test (windows-latest, 3.2)	2m 34s
test (windows-latest, 3.3)	2m 49s
test (windows-latest, head)	1m 22s
	37m 13s

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