[stable31] fix: allow hinting the shard keys for joined tables #25471

Job	Run time
changes	8s
integration-sqlite (dav_features, 8.1, stable31, stable31)	9m 16s
integration-sqlite (filesdrop_features, 8.1, stable31, stable31)	1m 57s
integration-sqlite (collaboration_features, 8.1, stable31, stable31)	3m 2s
integration-sqlite (file_conversions, 8.1, stable31, stable31)	2m 22s
integration-sqlite (capabilities_features, 8.1, stable31, stable31)	2m 3s
integration-sqlite (comments_features, 8.1, stable31, stable31)	2m 35s
integration-sqlite (features, 8.1, stable31, stable31)	11m 12s
integration-sqlite (openldap_features, 8.1, stable31, stable31)	1m 50s
integration-sqlite (setup_features, 8.1, stable31, stable31)	1m 6s
integration-sqlite (federation_features, 8.1, stable31, stable31)	5m 15s
integration-sqlite (remoteapi_features, 8.1, stable31, stable31)	1m 44s
integration-sqlite (ldap_features, 8.1, stable31, stable31)	2m 8s
integration-sqlite (sharing_features, 8.1, stable31, stable31)	18m 8s
integration-sqlite (openldap_numerical_features, 8.1, stable31, stable31)	2m 9s
integration-sqlite (videoverification_features, 8.1, stable31, stable31)	4m 42s
integration-sqlite (sharees_features, 8.1, stable31, stable31)	3m 58s
integration-sqlite (--tags ~@large files_features, 8.1, stable31, stable31)	13m 16s
integration-sqlite-summary	13s
	1h 27m 4s

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