[vala] (17 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:

  d61821e... coverage: Build gidl-bindings
  0a0c730... ci: Add .gitlab-ci.yml
  f7037d5... ci: Add ubuntu:16.04 run with gcc
  c6426c0... ci: Add archlinux:latest run with gcc
  cac3568... ci: Add alpine:edge run with gcc
  f30b3e9... ci: Add fedora:rawhide run with clang
  a4f7a1a... Ubuntu devel is broken
  1caeeba... ci: Use Fedora 34 (broken DBus)
  bf3c3d4... ci: Build manual as pdf and html
  fdbf125... ci: Always deploy

Commits added to the branch:

  cfb768e... gtk4: Fix GLib.Value parameter in ContentProvider.get_value (*)
  b417c89... valadoc: Include path to doclet in error message (*)
  b934cef... gtk4: Split out gtk4-wayland and gtk4-x11 into separate bin (*)
  afb877c... gstreamer: Update from 1.21.0+ git main (*)
  98d6feb... vapi: Update GIR-based bindings (*)
  45457b9... manual: Update from wiki.gnome.org (*)
  ef23c1b... Release 0.56.1 (*)
  146f8c5... coverage: Build gidl-bindings
  20551c9... ci: Add .gitlab-ci.yml
  7e85bbe... ci: Add ubuntu:16.04 run with gcc
  d0c525d... ci: Add archlinux:latest run with gcc
  4abdee1... ci: Add alpine:edge run with gcc
  b47cd3c... ci: Add fedora:rawhide run with clang
  cebd4c6... Ubuntu devel is broken
  488c05c... ci: Use Fedora 34 (broken DBus)
  182d6c2... ci: Build manual as pdf and html
  e49ee19... ci: Always deploy

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