#62622 Bump minimum supported PHP version to 7.4 #2577

Job	Run time
Single site report / PHP 8.3 with MySQL 8.4	1h 3m 13s
Multisite report / PHP 8.3 with MySQL 8.4 multisite	58m 15s
Slack Notifications	0s
Failed workflow tasks	0s
	2h 1m 28s

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