[vala] (18 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:

  d5e9e40... coverage: Build gidl-bindings
  5b51535... ci: Add .gitlab-ci.yml
  8206241... ci: Add ubuntu:16.04 run with gcc
  aae3b05... ci: Add ubuntu:18.04 run with gcc
  f42d948... ci: Add fedora:rawhide run with clang
  5675a54... ci: Add archlinux/base:latest run with gcc
  82616b8... ci: archlinux/bison - https://bugs.archlinux.org/task/64165
  362db86... ci: Add alpine:edge run with gcc
  ed17185... ci: Always deploy

Commits added to the branch:

  0703cb7... tests: Add "string switch" test to increase coverage (*)
  266b21e... glib-2.0: Add new symbols from 2.68 (*)
  b9c2963... gobject-2.0: Add new symbols from 2.68 (*)
  5f26d1d... gio-2.0: Update to 2.67.1+2bd86268 (*)
  fbb9a07... gstreamer: Update from 1.19.0+ git master (*)
  d6091bf... vapi: Update GIR-based bindings (*)
  c18f553... codegen: Fix assignment of casted struct value to property (*)
  801d0b5... gtk4: Update to 4.0.1 (*)
  d3f6c96... gio-2.0: Update to 2.67.2+46097e9b (*)
  1dfd4bc... coverage: Build gidl-bindings
  3f7442f... ci: Add .gitlab-ci.yml
  b21adc3... ci: Add ubuntu:16.04 run with gcc
  fc08bbf... ci: Add ubuntu:18.04 run with gcc
  d90c6b7... ci: Add fedora:rawhide run with clang
  8f6cee5... ci: Add archlinux/base:latest run with gcc
  d1af667... ci: archlinux/bison - https://bugs.archlinux.org/task/64165
  42e59ee... ci: Add alpine:edge run with gcc
  db55209... ci: Always deploy

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