[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:

  5b6ea22... coverage: Build gidl-bindings
  51b7870... ci: Add .gitlab-ci.yml
  3fab583... ci: Add ubuntu:16.04 run with gcc
  87503cf... ci: Add archlinux:latest run with gcc
  a129888... ci: Add alpine:edge run with gcc
  fa07ed3... ci: Add fedora:rawhide run with clang
  d550a87... Fedora rawhide is broken
  e7be7e1... ci: Use Fedora 34 (broken DBus)
  0fe2891... Ubuntu devel is broken
  f760fe3... Alpine edge is broken
  84b58c9... ci: Build manual as pdf and html
  904a168... ci: Always deploy

Commits added to the branch:

  b5db457... gstreamer-1.0: Unskip the ElementFactory.make/create_full() (*)
  52c225d... vapi: Update GIR-based bindings (*)
  92b2e93... girparser: Avoid possibily creating duplicated attributes (*)
  8faa03e... Sync NEWS from 0.54 (*)
  9f1de7a... vala: Allow unsafe assignment of integer to enum while repo (*)
  5041457... vala: Non nullable enum types are simple types (*)
  ded9eb3... coverage: Build gidl-bindings
  8e3f473... ci: Add .gitlab-ci.yml
  7ff37fa... ci: Add ubuntu:16.04 run with gcc
  7c8365c... ci: Add archlinux:latest run with gcc
  e68e926... ci: Add alpine:edge run with gcc
  69814e9... ci: Add fedora:rawhide run with clang
  54dd27a... Fedora rawhide is broken
  148da49... ci: Use Fedora 34 (broken DBus)
  1411cf9... Ubuntu devel is broken
  60a6cf1... Alpine edge is broken
  2b89e05... ci: Build manual as pdf and html
  d0c22ae... ci: Always deploy

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