[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:

  0182898... coverage: Build gidl-bindings
  fd60dd3... ci: Add .gitlab-ci.yml
  7dd0f11... ci: Add ubuntu:16.04 run with gcc
  d63388e... ci: Add ubuntu:18.04 run with gcc
  d8c00f1... ci: Add fedora:latest run with clang
  c7d0cf9... ci: Add archlinux/base:latest run with gcc
  c422770... ci: archlinux/bison - https://bugs.archlinux.org/task/64165
  4a50294... ci: Always deploy

Commits added to the branch:

  8797a0d... glib-2.0: Add missing "type_id" or "has_type_id" attributes (*)
  4a25381... vala: Real struct-type without type_id can't be used for GO (*)
  63c852c... poppler-glib: Update to 0.85 (*)
  011d44b... vapi: Update GIR-based bindings (*)
  fc2536f... gtk4: Update to 3.98+2da445f9 (*)
  cf01f3e... tests: Extend "GLib.Value (un-)boxing" test to increase cov (*)
  9fead27... codegen: Cleanup GLibValue helper functions (*)
  65a9460... codegen: Move GLibValue into a separate source-file (*)
  1d75332... codegen: Factor out GValueModule (*)
  4366333... codegen: Move ObjectTypeSymbol casting to GTypeModule (*)
  1a7898a... coverage: Build gidl-bindings
  d9a34b2... ci: Add .gitlab-ci.yml
  e003125... ci: Add ubuntu:16.04 run with gcc
  d66b5d8... ci: Add ubuntu:18.04 run with gcc
  a7ed587... ci: Add fedora:latest run with clang
  7154adf... ci: Add archlinux/base:latest run with gcc
  825908d... ci: archlinux/bison - https://bugs.archlinux.org/task/64165
  242fb35... ci: Always deploy

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