Bump squizlabs/php_codesniffer from 3.8.0 to 3.8.1 #1704

Job	Run time
build (STATIC_CODE_ANALYSIS, 8.1, FALSE, ^4)	28s
build (INTEGRATED_TEST_ON_OLDEST_SUPPORTED, 8.1, FALSE, ^4)	28s
build (INTEGRATED_TEST_ON_PREVIOUS_MINOR, 8.1, FALSE, ^4)	2m 38s
build (ISOLATED_TEST_ON_CURRENT, 8.1, FALSE, ^4)	2m 10s
build (INTEGRATED_TEST_ON_CURRENT, 8.1, FALSE, ^4)	2m 45s
build (ISOLATED_TEST_ON_CURRENT_DEV, 8.1, FALSE, ^4)	2m 24s
build (INTEGRATED_TEST_ON_CURRENT_DEV, 8.1, FALSE, ^4)	3m 8s
build (STRICT_DEPRECATED_CODE_SCAN, 8.1, FALSE, ^4)	32s
build (ISOLATED_TEST_ON_NEXT_MINOR, 8.1, FALSE, ^4)	33s
build (DEPRECATED_CODE_SCAN_W_CONTRIB, 8.1, FALSE, ^4)	1m 25s
build (INTEGRATED_TEST_ON_NEXT_MINOR_DEV, 8.1, FALSE, ^4)	23s
build (ISOLATED_TEST_ON_NEXT_MINOR_DEV, 8.1, FALSE, ^4)	19s
build (LOOSE_DEPRECATED_CODE_SCAN, 8.1, FALSE, ^4)	1m 14s
build (INTEGRATED_TEST_ON_LATEST_LTS, 8.2, FALSE)	21s
build (ISOLATED_TEST_ON_CURRENT, 8.1, TRUE)	1m 58s
build (ISOLATED_TEST_ON_CURRENT, 8.2)	2m 1s
all-successful	2s
	22m 49s

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