[vala] (13 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:

  f2cefa7... ci: Add .gitlab-ci.yml
  9f670f2... ci: Always deploy
  6f672c9... ci: Add ubuntu lts 16.04 run with gcc
  275adb5... ci: Build and deploy API documentation
  55e623d... Use Fedora 29 -- https://bugzilla.redhat.com/show_bug.cgi?i
  b591be6... ci: Add fedora rawhide run with gcc

Commits added to the branch:

  6ea19c6... girparser: Skip 'attribute' elements (*)
  eb95c02... gstreamer: Update from 1.17.0+ git master (*)
  01ea1ca... vapi: Update GIR-based bindings (*)
  c409af5... gtk4: Update to 3.96.0+8cfdd6c5 (*)
  86002f1... gtk+-3.0: Update to 3.24.9~18177388 (*)
  e186c47... vala: Only warn about imcompatible type of external constru (*)
  cd6ed67... tests: Null-terminate arrays for compatibility test of uint (*)
  f2f25a6... Release 0.45.2 (*)
  5c0e8b2... ci: Add .gitlab-ci.yml
  e99672d... ci: Always deploy
  4e751bb... ci: Add ubuntu lts 16.04 run with gcc
  3868fa7... ci: Build and deploy API documentation
  9eba9e9... Use Fedora 29 -- https://bugzilla.redhat.com/show_bug.cgi?i

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