Tests

Bump actions/checkout from 2 to 4 #286

Job	Run time
build (STATIC_CODE_ANALYSIS, 8.3, FALSE, ^4)	18s
build (INTEGRATED_TEST_ON_OLDEST_SUPPORTED, 8.3, FALSE, ^4)	1m 10s
build (INTEGRATED_TEST_ON_LATEST_LTS, 8.3, FALSE, ^4)	1m 45s
build (INTEGRATED_TEST_ON_PREVIOUS_MINOR, 8.3, FALSE, ^4)	27s
build (ISOLATED_TEST_ON_CURRENT, 8.3, FALSE, ^4)	46s
build (INTEGRATED_TEST_ON_CURRENT, 8.3, FALSE, ^4)	1m 51s
build (ISOLATED_TEST_ON_CURRENT_DEV, 8.3, FALSE, ^4)	51s
build (INTEGRATED_TEST_ON_CURRENT_DEV, 8.3, FALSE, ^4)	1m 0s
build (STRICT_DEPRECATED_CODE_SCAN, 8.3, FALSE, ^4)	26s
build (ISOLATED_TEST_ON_NEXT_MINOR, 8.3, FALSE, ^4)	29s
build (INTEGRATED_TEST_ON_NEXT_MINOR, 8.3, FALSE, ^4)	26s
build (DEPRECATED_CODE_SCAN_W_CONTRIB, 8.3, FALSE, ^4)	1m 15s
build (INTEGRATED_TEST_ON_NEXT_MINOR_DEV, 8.3, FALSE, ^4)	32s
build (ISOLATED_TEST_ON_NEXT_MINOR_DEV, 8.3, FALSE, ^4)	18s
build (LOOSE_DEPRECATED_CODE_SCAN, 8.3, FALSE, ^4)	48s
build (INTEGRATED_TEST_ON_LATEST_EOL_MAJOR, 8.1, FALSE, ^4)	1m 14s
build (INTEGRATED_TEST_ON_LATEST_EOL_MAJOR, 8.0, FALSE, ^3)	2m 3s
build (INTEGRATED_TEST_ON_OLDEST_SUPPORTED, 8.1, ^4)	1m 15s
build (INTEGRATED_TEST_ON_LATEST_LTS, 8.1, ^4)	1m 21s
build (8.1)	20s
	18m 35s

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