[PATCH 0/6] tests/docker: Update Fedora containers

[John Snow]

Fedora 33 will be EOL before 6.2 ships; Fedora 35 was just
released. Update our various containers to test on F34 and F35.

Fix a minor code warning issue that surfaces in a new version of Clang,
and fix a small deprecation issue for the latest version of spice.

In testing, I found that oss-fuzz was more likely to time out on GitLab;
it's unclear if this is a performance regression or just getting unlucky
with when I test.

Summary:
  fedora.docker updated to F34 and then F35
  fedora34.docker copied from fedora.docker, new build test added
  cross-compile targets bumped from F33 to F34

John Snow (6):
  spice: Update QXLInterface for spice >= 0.15.0
  ui/clipboard: Don't use g_autoptr just to free a variable
  docker: update fedora container to Fedora 34
  docker: update Fedora-based cross-compiler containers to Fedora 34
  docker: update 'python' dockerfile to use Fedora registry
  docker: Add Fedora 35 container

 include/ui/qemu-spice.h                       |   6 +
 hw/display/qxl.c                              |  14 ++-
 ui/clipboard.c                                |   3 +-
 ui/spice-display.c                            |  11 ++
 .gitlab-ci.d/buildtest.yml                    |  16 +++
 .gitlab-ci.d/container-core.yml               |   5 +
 .../dockerfiles/fedora-cris-cross.docker      |   2 +-
 .../dockerfiles/fedora-win32-cross.docker     |   2 +-
 .../dockerfiles/fedora-win64-cross.docker     |   2 +-
 tests/docker/dockerfiles/fedora.docker        |   2 +-
 tests/docker/dockerfiles/fedora34.docker      | 117 ++++++++++++++++++
 tests/docker/dockerfiles/python.docker        |   2 +-
 12 files changed, 175 insertions(+), 7 deletions(-)
 create mode 100644 tests/docker/dockerfiles/fedora34.docker

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2.31.1