sql: add ALTER RANGE RELOCATE

[exalate-issue-sync]

Exalate commented:

cockroachdb/cockroach#72305 --- Release note (sql change): Introduce new SQL syntax ALTER RANGE RELOCATE to move a lease or replica between stores. This is helpful in an emergency situation to relocate data in the cluster.

Jira Issue: DOC-1869

[exalate-issue-sync]

Michael Wang (mwang1026) commented:
Limitation note: can't move raft leader -- it'll throw an error

[exalate-issue-sync]

Richard Loveland (rmloveland) commented:
This is done now

[mari-crl]

This issue is an accidental duplicate created by automation. The correct issue that is synced to the corresponding Jira issue is #12453.