fix(OpenAPI): Adjust array syntax to avoid ambiguities #13512

Job	Run time
changes	6s
integration-sqlite (capabilities_features, 8.1, main)	1m 48s
integration-sqlite (collaboration_features, 8.1, main)	3m 48s
integration-sqlite (comments_features, 8.1, main)	2m 37s
integration-sqlite (dav_features, 8.1, main)	5m 23s
integration-sqlite (features, 8.1, main)	6m 40s
integration-sqlite (federation_features, 8.1, main)	6m 44s
integration-sqlite (--tags ~@large files_features, 8.1, main)	10m 14s
integration-sqlite (filesdrop_features, 8.1, main)	3m 12s
integration-sqlite (openldap_features, 8.1, main)	2m 51s
integration-sqlite (openldap_numerical_features, 8.1, main)	2m 52s
integration-sqlite (ldap_features, 8.1, main)	3m 19s
integration-sqlite (remoteapi_features, 8.1, main)	3m 1s
integration-sqlite (setup_features, 8.1, main)	2m 43s
integration-sqlite (sharees_features, 8.1, main)	6m 37s
integration-sqlite (sharing_features, 8.1, main)	15m 13s
integration-sqlite (videoverification_features, 8.1, main)	7m 7s
integration-sqlite-summary	5s
	1h 24m 20s

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