Merge remote-tracking branch 'remotes/stsquad/tags/pull-for-5.2-rc3-231120-1' into...

Misc CI fixes:

  - more helpful logic for git-pipeline-status
  - fix tempdir leak in avocado
  - move remaining x86 check-tcg to gitlab
  - add tracing headers to ubuntu2004 docker
  - move tracing backend tests to gitlab
  - bump up timeouts on cirrus MacOS

# gpg: Signature made Mon 23 Nov 2020 09:58:18 GMT
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-for-5.2-rc3-231120-1:
  .cirrus.yml: bump timeout period for MacOS builds
  gitlab-ci: Move trace backend tests across to gitlab
  tests/docker: Install liblttng-ust-dev package in Ubuntu 20.04 image
  gitlab: move remaining x86 check-tcg targets to gitlab
  tests/avocado: clean-up socket directory after run
  tests: add prefixes to the bare mkdtemp calls
  scripts/ci: clean up default args logic a little

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>