refactor(encoding): Check if strings are valid ASCII #17352

Job	Run time
changes	5s
integration-sqlite (capabilities_features, 8.1, main)	1m 54s
integration-sqlite (collaboration_features, 8.1, main)	3m 44s
integration-sqlite (comments_features, 8.1, main)	3m 5s
integration-sqlite (dav_features, 8.1, main)	9m 49s
integration-sqlite (features, 8.1, main)	10m 8s
integration-sqlite (federation_features, 8.1, main)	6m 38s
integration-sqlite (--tags ~@large files_features, 8.1, main)	8m 59s
integration-sqlite (filesdrop_features, 8.1, main)	2m 19s
integration-sqlite (file_conversions, 8.1, main)	1m 35s
integration-sqlite (openldap_features, 8.1, main)	1m 24s
integration-sqlite (openldap_numerical_features, 8.1, main)	2m 27s
integration-sqlite (ldap_features, 8.1, main)	2m 45s
integration-sqlite (remoteapi_features, 8.1, main)	1m 27s
integration-sqlite (setup_features, 8.1, main)	1m 8s
integration-sqlite (sharees_features, 8.1, main)	4m 10s
integration-sqlite (sharing_features, 8.1, main)	21m 3s
integration-sqlite (videoverification_features, 8.1, main)	7m 1s
integration-sqlite-summary	5s
	1h 29m 46s

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