fix: some renamings in vshard.rs

Summary

Removed wrong use of type aliases. InstanceId/ReplicasetId was used instead of InstanceUuid/ReplicasetUuid.

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• Cherry-pick to: none
• Docs follow-up: not necessary

changed milestone to %24.6 - Plugins and Tiers

added bug label

requested review from @gmoshkin

assigned to @kusancho

added 14 commits

• 5a4f1de7...c9aee752 - 13 commits from branch master
• 97a9136b - fix: some renamings in vshard.rs

Compare with previous version

duplicate of !1409 (merged)

closed