Hygiene: Use parallel requests in getMetadataActionApi
Hygiene: Use parallel requests in getMetadataActionApi

Change-Id: Ideba420dc690a85809343328a2b9b250d09bd923

wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps