BLT-5208: EOL for Drupal 9, PHP 7.4, PHP 8.0, and Drush 11 #1601

Job	Run time
build (STATIC_CODE_ANALYSIS, 8.1, FALSE, ^4)	43s
build (INTEGRATED_TEST_ON_OLDEST_SUPPORTED, 8.1, FALSE, ^4)	25s
build (INTEGRATED_TEST_ON_PREVIOUS_MINOR, 8.1, FALSE, ^4)	2m 52s
build (ISOLATED_TEST_ON_CURRENT, 8.1, FALSE, ^4)	2m 3s
build (INTEGRATED_TEST_ON_CURRENT, 8.1, FALSE, ^4)	2m 42s
build (ISOLATED_TEST_ON_CURRENT_DEV, 8.1, FALSE, ^4)	2m 32s
build (INTEGRATED_TEST_ON_CURRENT_DEV, 8.1, FALSE, ^4)	2m 37s
build (STRICT_DEPRECATED_CODE_SCAN, 8.1, FALSE, ^4)	28s
build (ISOLATED_TEST_ON_NEXT_MINOR, 8.1, FALSE, ^4)	1m 59s
build (DEPRECATED_CODE_SCAN_W_CONTRIB, 8.1, FALSE, ^4)	1m 28s
build (INTEGRATED_TEST_ON_NEXT_MINOR_DEV, 8.1, FALSE, ^4)	3m 8s
build (ISOLATED_TEST_ON_NEXT_MINOR_DEV, 8.1, FALSE, ^4)	2m 23s
build (LOOSE_DEPRECATED_CODE_SCAN, 8.1, FALSE, ^4)	1m 32s
build (INTEGRATED_TEST_ON_LATEST_LTS, 8.2, FALSE)	28s
build (ISOLATED_TEST_ON_CURRENT, 8.1, TRUE)	1m 50s
build (ISOLATED_TEST_ON_CURRENT, 8.2)	1m 55s
all-successful	4s
	29m 9s

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