Merge tag 'pull-request-2025-09-24' of https://gitlab.com/thuth/qemu into staging

* New functional tests to check via the vmstate-static-checker.py script
* New functional tests for CD-ROM boot on hppa
* Skip functional tests on more exotic network errors, too
* Fix another issue with htags in the gitlab CI
* Some additional minor fixes to various functional tests

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# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [unknown]
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* tag 'pull-request-2025-09-24' of https://gitlab.com/thuth/qemu:
  tests/functional: treat unknown exceptions as transient faults
  tests/functional: retry when seeing ConnectionError exception
  tests: Fix "make check-functional" for targets without thorough tests
  tests/functional/hppa: Add a CD-ROM boot test for qemu-system-hppa
  .gitlab-ci.d/buildtest.yml: Unset CI_COMMIT_DESCRIPTION for htags
  tests/functional: use self.log for all logging
  tests/functional: Use vmstate-static-checker.py to test data from v7.2
  tests/data/vmstate-static-checker: Add dump files from QEMU 7.2.17
  tests/functional: Test whether the vmstate-static-checker script works fine
  tests: Move the old vmstate-static-checker files to tests/data/
  tests/functional/s390x/test_pxelinux: Fix warnings from pylint
  tests/functional/m68k: Use proper polling in the next-cube test

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>