[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:

  edc3cd1... coverage: Build gidl-bindings
  ad85681... ci: Add .gitlab-ci.yml
  bac1c92... ci: Add ubuntu:16.04 run with gcc
  88a05f9... ci: Add ubuntu:18.04 run with gcc
  7a9b55c... ci: Add fedora:latest run with clang
  1a8cbcf... ci: Add archlinux/base:latest run with gcc
  c0fc083... ci: archlinux/bison - https://bugs.archlinux.org/task/64165
  6762e17... ci: Always deploy

Commits added to the branch:

  3f7b518... vala: Ensure non-empty argument list for "disconnect" befor (*)
  e2b199c... glib-2.0: Add Unicode 13.0 symbols (*)
  eba6058... vapi: Update GIR-based bindings (*)
  3b36e72... gtk4: Update to 3.98.2+6a4f7889 (*)
  b1cb703... codegen: Fix default of CCode.pos for parameters in async m (*)
  4a98798... girparser: Move special handling for certain parameters to  (*)
  bcc6d14... girparser: Drop special handling of GLib.Data, GLib.PtrArra (*)
  0e424b9... girparser: Improve detection of AsyncReadyCallback/AsyncRes (*)
  5120ea0... gio-2.0: Add "async_result_pos" attributes to *.call_with_u (*)
  9fede89... coverage: Build gidl-bindings
  178c317... ci: Add .gitlab-ci.yml
  62fddad... ci: Add ubuntu:16.04 run with gcc
  fa90046... ci: Add ubuntu:18.04 run with gcc
  a26a25a... ci: Add fedora:latest run with clang
  7a7c933... ci: Add archlinux/base:latest run with gcc
  6c3a68b... ci: archlinux/bison - https://bugs.archlinux.org/task/64165
  695df77... ci: Always deploy

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