(Experimental) VReplication Workflows: cache workflow metadata in topo and use to filter target shards for vreplication commands#14211

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rohit-nayak-ps wants to merge 3 commits intovitessio:mainfrom planetscale:rohit/vrep-metadata

+1,503-420

Commits on Oct 8, 2023

Add workflow metadata to keyspace topo object. Save it currently only for movetables and use the cached information, if available, to only contact primaries of participating shards for all workflow…
rohit-nayak-ps
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Overwrite workflow if same name exists, since we don't delete from topo record when workflow is deleted. Otherwise e2e tests which create same workflow name fail. Fix TestAPI
rohit-nayak-ps
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Commits on Oct 9, 2023

Cache workflow for Reshard as well since same workflow name is used in e2e tests for reshard and movetables
rohit-nayak-ps
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