feat: add command to export certificate bundle #8405

Job	Run time
changes	9s
integration-sqlite (capabilities_features, 8.2, main)	6m 41s
integration-sqlite (collaboration_features, 8.2, main)	6m 25s
integration-sqlite (comments_features, 8.2, main)	6m 12s
integration-sqlite (dav_features, 8.2, main)	11m 6s
integration-sqlite (features, 8.2, main)	12m 50s
integration-sqlite (federation_features, 8.2, main)	8m 8s
integration-sqlite (--tags ~@large files_features, 8.2, main)	16m 2s
integration-sqlite (filesdrop_features, 8.2, main)	5m 3s
integration-sqlite (openldap_features, 8.2, main)	5m 6s
integration-sqlite (openldap_numerical_features, 8.2, main)	5m 14s
integration-sqlite (ldap_features, 8.2, main)	5m 33s
integration-sqlite (remoteapi_features, 8.2, main)	6m 3s
integration-sqlite (setup_features, 8.2, main)	4m 15s
integration-sqlite (sharees_features, 8.2, main)	9m 8s
integration-sqlite (sharing_features, 8.2, main)	28m 22s
integration-sqlite (videoverification_features, 8.2, main)	8m 21s
integration-sqlite-summary	4s
	2h 24m 42s

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