chore(deps): Bump actions/checkout from 3.5.3 to 4.0.0 #343

Job	Run time
test / test-dart-vm (3.0.1)	1m 51s
test / test-dart-vm (stable)	2m 2s
native_test / test-dart-native (macos-latest)	2m 15s
dart2js_test / test-dart-2js (3.0.1, chrome)	4m 20s
native_test / test-dart-native (windows-latest)	3m 9s
ddc_test / test-dart-ddc (3.0.1, chrome)	1m 59s
dart2js_test / test-dart-2js (3.0.1, firefox)	4m 45s
ddc_test / test-dart-ddc (3.0.1, firefox)	2m 24s
dart2js_test / test-dart-2js (stable, chrome)	4m 13s
ddc_test / test-dart-ddc (stable, chrome)	2m 3s
dart2js_test / test-dart-2js (stable, firefox)	4m 20s
ddc_test / test-dart-ddc (stable, firefox)	2m 22s
	35m 43s

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