[vala] (10 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:

  5440591... ci: Add .gitlab-ci.yml
  f97d59e... ci: Always deploy
  4a6576b... ci: Add ubuntu lts 16.04 run with gcc
  225fc06... ci: Build and deploy API documentation
  83d9f20... Use Fedora 29 -- https://bugzilla.redhat.com/show_bug.cgi?i

Commits added to the branch:

  71b48a7... gstreamer: Update from 1.15.90+ git master (*)
  e7cc805... gtk4: Update to 3.94.0+2656f5b4 (*)
  dd52f74... javascriptcoregtk-4.0: Update to 2.24.1 (*)
  1a90ab3... vala: Write "Source" attribute in fast-vapi mode (*)
  c5fbd6c... tests: Add "fast-vapi" test to increase coverage (*)
  391fb7e... ci: Add .gitlab-ci.yml
  8fade7e... ci: Always deploy
  2f893d7... ci: Add ubuntu lts 16.04 run with gcc
  c1878e7... ci: Build and deploy API documentation
  802950e... Use Fedora 29 -- https://bugzilla.redhat.com/show_bug.cgi?i

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