Merge tag 'pull-request-2026-01-27' of https://gitlab.com/thuth/qemu into staging

* gitlab: preserve base rules for container template
* Fix some issues to make QEMU compilable on non-mainstream distros again
* Enforce sha256 as hashsum algorithm for all functional tests

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# gpg: Signature made Wed 28 Jan 2026 01:25:23 AM AEDT
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [unknown]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [unknown]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [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: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2026-01-27' of https://gitlab.com/thuth/qemu:
  tests/functional: Enforce sha256 as hashsum algorithm for all tests
  tests/vm: Make the haiku VM usable again
  tests/vm: Update netbsd VM to version 10.1
  pc-bios/optionrom: Use 32-bit linker emulation for the optionroms
  tests/tracetool: Honor the Python interpreter that "configure" detected
  tests/functional/x86_64: Use the right Python interpreter & fix format string
  tests/functional/x86_64: Limit the memlock test to Linux hosts
  tests/functional/riscv64: Silence warnings from Pylint in the boston test
  gitlab: preserve base rules for container template

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