Merge tag 'migration-20250722-pull-request' of https://gitlab.com/farosas/qemu into...

Migration pull request

- Fixes to postcopy blocktime latency display code
- Fix to QMP error message (not)shown when postcopy fails
- Workaround to a GNUTLS bug that crashes QEMU

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# gpg: Signature made Tue 22 Jul 2025 19:14:36 EDT
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# gpg: Good signature from "Fabiano Rosas <farosas@suse.de>" [unknown]
# gpg:                 aka "Fabiano Almeida Rosas <fabiano.rosas@suse.com>" [unknown]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: AA1B 48B0 A223 26A5 A4C3  64CF C798 DC74 1BEC 319D

* tag 'migration-20250722-pull-request' of https://gitlab.com/farosas/qemu:
  crypto: add tracing & warning about GNUTLS countermeasures
  migration: activate TLS thread safety workaround
  io: add support for activating TLS thread safety workaround
  crypto: implement workaround for GNUTLS thread safety problems
  migration: show error message when postcopy fails
  migration: HMP: Fix postcopy latency distribution label
  migration: HMP: Fix possible out-of-bounds access

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