Merge tag 'migration-20231201-pull-request' of https://github.com/xzpeter/qemu into staging

Migration patches for rc3:

- One more memleak regression fix from Het

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* tag 'migration-20231201-pull-request' of https://github.com/xzpeter/qemu:
  migration: Plug memory leak with migration URIs

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>