Write orchestrator code for Z6921
Z6921 = Built-in implementation of Fetch Wikidata item
This MR depends on function-schemata MR function-schemata!181 (merged)
Bug: T381207
Closes T381207
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Support: mw:GitLab, how to host a project on GitLab, #wikimedia-gitlab on libera.chat, #GitLab on Phabricator.
Z6921 = Built-in implementation of Fetch Wikidata item
This MR depends on function-schemata MR function-schemata!181 (merged)
Bug: T381207
Closes T381207