[release-20.0-rc] VReplication Workflow: set state correctly when restarting workflow streams in the copy phase (#16217)#16223

shlomi-noach merged 3 commits intorelease-20.0-rcvitessio/vitess:release-20.0-rcfrom

backport-16217-to-release-20.0-rcvitessio/vitess:backport-16217-to-release-20.0-rcCopy head branch name to clipboard