[vala] (19 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:

  e222ccf... coverage: Build gidl-bindings
  77bd08c... ci: Add .gitlab-ci.yml
  ad53b43... ci: Add ubuntu:16.04 run with gcc
  723a680... ci: Add archlinux:latest run with gcc
  f006bba... ci: Add alpine:edge run with gcc
  881a4a0... ci: Add fedora:rawhide run with clang
  bd91196... Fedora rawhide is broken
  7431d5b... ci: Use Fedora 34 (broken DBus)
  54b95ed... Ubuntu devel is broken
  953f59a... Alpine edge is broken
  a1d3878... ci: Build manual as pdf and html
  7040ca9... ci: Always deploy

Commits added to the branch:

  0c0c4e6... Revert "Make more use of native GLib.Regex syntax" (*)
  929d3be... vala: Show source location when reporting deprecations (*)
  e556d70... gio-2.0: Add custom MemoryOutputStream.with_*data() wrapper (*)
  5738468... codegen: Allow boxing of non-external SimpleType structs (*)
  29470db... codegen: Cast given default-value of struct with possible m (*)
  9adade6... codegen: Initialize "result" variable on declaration for ab (*)
  c46078f... codegen: Use __once instead of __volatile in generated code (*)
  d85eb74... coverage: Build gidl-bindings
  a1a3faf... ci: Add .gitlab-ci.yml
  8505ab1... ci: Add ubuntu:16.04 run with gcc
  2fac9e7... ci: Add archlinux:latest run with gcc
  6989664... ci: Add alpine:edge run with gcc
  447b0b3... ci: Add fedora:rawhide run with clang
  93b881b... Fedora rawhide is broken
  688f2ac... ci: Use Fedora 34 (broken DBus)
  f9d3357... Ubuntu devel is broken
  48b0d11... Alpine edge is broken
  fd67290... ci: Build manual as pdf and html
  9166d0f... ci: Always deploy

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