[vala] (21 commits) Non-fast-forward update to branch wip/ci

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/ci' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  fcdd347... coverage: Build gidl-bindings
  175ddb5... ci: Add .gitlab-ci.yml
  eb9da5a... ci: Add ubuntu:16.04 run with gcc
  1e1f497... ci: Add ubuntu:18.04 run with gcc
  a27baba... ci: Add fedora:rawhide run with clang
  05708bd... ci: Add archlinux/base:latest run with gcc
  bd549ed... ci: archlinux/bison - https://bugs.archlinux.org/task/64165
  bd806e3... ci: Always deploy

Commits added to the branch:

  578a129... vala: Inherit CCode.returns_floating_reference attribute fr (*)
  03220aa... gtk4: Update to 3.99.0+bbb15f65 (*)
  098ef70... gstreamer: Update from 1.17.2+ git master (*)
  22dfb1c... pango: Update from 1.45.4+ (*)
  b249e97... codegen: Include header for base-symbols when connecting vf (*)
  4a1bdab... girparser: Add support for string "feature_test_macro" meta (*)
  c4aca9e... gio-2.0: Include "gio/gsettingsbackend.h" for GLib.Settings (*)
  eea1aa3... vala: Mark tranformed member-access as qualified (*)
  0cbe227... gtk4: Update to 3.99.0+83e9b5b4 (*)
  b2746b9... vala: Switch context if with-variable is not owned by with- (*)
  884856b... tests: Add "enum typed property" tests to increase coverage (*)
  01914cd... tests: Add "return in construct/destructor" tests to increa (*)
  5da90d7... codegen: Support non-virtual signals with default handler (*)
  b62cba7... coverage: Build gidl-bindings
  15be65e... ci: Add .gitlab-ci.yml
  a8c0825... ci: Add ubuntu:16.04 run with gcc
  4948b9b... ci: Add ubuntu:18.04 run with gcc
  0069701... ci: Add fedora:rawhide run with clang
  ffde8a5... ci: Add archlinux/base:latest run with gcc
  a9a1081... ci: archlinux/bison - https://bugs.archlinux.org/task/64165
  b0a4a90... ci: Always deploy

(*) This commit already existed in another branch; no separate mail sent