Keep config.php group-writable #38939

Job	Run time
changes	8s
integration-sqlite (federation_features, 8.4, main, master)	7m 32s
integration-sqlite (capabilities_features, 8.4, main, master)	2m 39s
integration-sqlite (files_reminders, 8.4, main, master)	1m 11s
integration-sqlite (features, 8.4, main, master)	26m 8s
integration-sqlite (sharing_features, 8.4, main, master)	44m 1s
integration-sqlite (openldap_numerical_features, 8.4, main, master)	3m 20s
integration-sqlite (openldap_features, 8.4, main, master)	1m 30s
integration-sqlite (sharees_features, 8.4, main, master)	26m 3s
integration-sqlite (filesdrop_features, 8.4, main, master)	1m 50s
integration-sqlite (comments_features, 8.4, main, master)	4m 14s
integration-sqlite (setup_features, 8.4, main, master)	59s
integration-sqlite (routing_features, 8.4, main, master)	3m 47s
integration-sqlite (file_conversions, 8.4, main, master)	4m 5s
integration-sqlite (ldap_features, 8.4, main, master)	2m 18s
integration-sqlite (--tags ~@large files_features, 8.4, main, master)	34m 15s
integration-sqlite (remoteapi_features, 8.4, main, master)	1m 24s
integration-sqlite (theming_features, 8.4, main, master)	4m 15s
integration-sqlite (dav_features, 8.4, main, master)	11m 31s
integration-sqlite (videoverification_features, 8.4, main, master)	6m 45s
integration-sqlite (collaboration_features, 8.4, main, master)	5m 32s
integration-sqlite-summary	5s
	3h 13m 32s

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