[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:

  d32cf93... coverage: Build gidl-bindings
  d8969c2... ci: Add .gitlab-ci.yml
  7fa5dea... ci: Add ubuntu:16.04 run with gcc
  49e7c6c... ci: Add archlinux:latest run with gcc
  1a588ad... ci: Add alpine:edge run with gcc
  5b62d61... ci: Add fedora:rawhide run with clang
  8f8dcf3... Ubuntu devel is broken
  f6f581a... ci: Use Fedora 34 (broken DBus)
  771bb34... ci: Build manual as pdf and html
  b5c5022... ci: Always deploy

Commits added to the branch:

  7496f6e... gtkmodule: Recurse inner classes of ObjectTypeSymbols (2) (*)
  190bda0... vala: Free empty stack list for code contexts (*)
  8ea51c7... vala: Clear SemanticAnalyzer.current_{symbol,source_file} w (*)
  8c5a6dc... Release 0.55.3 (*)
  d9f7022... vala: Catch and throw possible inner error of lock statemen (*)
  f8b7f0d... build: Update gitlog-to-changelog to latest upstream (*)
  85d01e1... build: Update git-version-gen to latest upstream (*)
  7e75f81... vala: Only add catch clause if an inner error is possible (*)
  baebb4b... tests: Add more Werror=... flags (*)
  cd729b1... coverage: Build gidl-bindings
  04a6631... ci: Add .gitlab-ci.yml
  411feba... ci: Add ubuntu:16.04 run with gcc
  c3897be... ci: Add archlinux:latest run with gcc
  1a9e42d... ci: Add alpine:edge run with gcc
  65c2b71... ci: Add fedora:rawhide run with clang
  6879cbf... Ubuntu devel is broken
  815900c... ci: Use Fedora 34 (broken DBus)
  5b36a0c... ci: Build manual as pdf and html
  025bfa3... ci: Always deploy

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