[vala] (20 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:

  33f4a23... coverage: Build gidl-bindings
  95c7fcc... ci: Add .gitlab-ci.yml
  8cf4172... ci: Add ubuntu:16.04 run with gcc
  780c211... ci: Add ubuntu:18.04 run with gcc
  4c2a0b7... ci: Add fedora:latest run with clang
  6f2470e... ci: Add archlinux/base:latest run with gcc
  001d3b9... ci: archlinux/bison - https://bugs.archlinux.org/task/64165
  9956543... ci: Always deploy

Commits added to the branch:

  6465dbb... vala: Check before accessing "name" of parent_symbol which  (*)
  edf4b3d... vapi: Update GIR-based bindings (*)
  b977da4... vala: Allow to override base interface properties explicitl (*)
  4e78d77... compiler: Add "--depfile" option writing package dependenci (*)
  1384dd0... genie: Fix parser's inner state when a struct is declared a (*)
  af236c9... glib-2.0: Reset errno before calling strto*() functions. (*)
  8876875... gtk4: Update to 3.96.0+448a4023 (*)
  46274b7... gstreamer: Update from 1.17.0+ git master (*)
  f4ec912... vapi: Update GIR-based bindings (*)
  03b481e... tests: Fix make distcheck (*)
  02ca1ff... Release 0.47.2 (*)
  ce690e9... codegen: Don't set implemenation of interface property to i (*)
  3f8623e... coverage: Build gidl-bindings
  39f2459... ci: Add .gitlab-ci.yml
  f55dae7... ci: Add ubuntu:16.04 run with gcc
  344bc2f... ci: Add ubuntu:18.04 run with gcc
  a72f8e8... ci: Add fedora:latest run with clang
  e293d58... ci: Add archlinux/base:latest run with gcc
  cf1ca16... ci: archlinux/bison - https://bugs.archlinux.org/task/64165
  8386d4a... ci: Always deploy

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