[stable33] chore(openmetrics): export only "real" files count #39586

Job	Run time
changes	9s
integration-sqlite (--tags ~@large files_features, 8.4, stable33, stable33)	35m 59s
integration-sqlite (file_conversions, 8.4, stable33, stable33)	3m 5s
integration-sqlite (capabilities_features, 8.4, stable33, stable33)	3m 23s
integration-sqlite (federation_features, 8.4, stable33, stable33)	6m 57s
integration-sqlite (ldap_features, 8.4, stable33, stable33)	3m 40s
integration-sqlite (openldap_features, 8.4, stable33, stable33)	2m 57s
integration-sqlite (collaboration_features, 8.4, stable33, stable33)	6m 30s
integration-sqlite (dav_features, 8.4, stable33, stable33)	14m 32s
integration-sqlite (filesdrop_features, 8.4, stable33, stable33)	3m 42s
integration-sqlite (setup_features, 8.4, stable33, stable33)	2m 19s
integration-sqlite (files_reminders, 8.4, stable33, stable33)	1m 25s
integration-sqlite (sharing_features, 8.4, stable33, stable33)	44m 25s
integration-sqlite (openldap_numerical_features, 8.4, stable33, stable33)	2m 51s
integration-sqlite (routing_features, 8.4, stable33, stable33)	3m 34s
integration-sqlite (comments_features, 8.4, stable33, stable33)	2m 54s
integration-sqlite (remoteapi_features, 8.4, stable33, stable33)	3m 17s
integration-sqlite (videoverification_features, 8.4, stable33, stable33)	9m 46s
integration-sqlite (theming_features, 8.4, stable33, stable33)	3m 0s
integration-sqlite (sharees_features, 8.4, stable33, stable33)	25m 7s
integration-sqlite (features, 8.4, stable33, stable33)	26m 20s
integration-sqlite-summary	6s
	3h 25m 58s

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