[vala] (18 commits) Non-fast-forward update to branch wip/profile-posix

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/profile-posix' 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:

  3faa680... Revert "Drop POSIX profile"

Commits added to the branch:

  4156851... gtk+-4.0: Update to 3.93.0+527d265b (*)
  3ae57ab... Release 0.40.0 (*)
  5899714... posix: Add perror(3) (*)
  a56cf2a... posix: Add strsignal(3) and psignal(3) (*)
  c07c50a... linux: Add psiginfo(3) (*)
  1254fcf... linux: Add constants from program_invocation_name(3) (*)
  11a30c9... posix: Add System V IPC (shared memory, semaphores, message (*)
  2c488b5... posix: Add Posix IPC (Message Queue, Named Semaphores, Shar (*)
  029aa18... gstreamer: Update to 1.13.91 (*)
  d87b45e... gstreamer-1.0: Add gstreamer-webrtc-1.0 bindings (*)
  c7d5a91... vapi: Add libgeoclue-2.0 bindings (*)
  a162561... gdk-3.0,gtk+-3.0: Update to 3.22.29 (*)
  35b2456... gtk+-4.0: Update to 3.93.0+1a137377 (*)
  77315cd... codegen: Don't add length fields for captured fixed-length  (*)
  ce48e6d... codegen: Don't add target fields for captured delegates wit (*)
  4362383... Reintroduce POSIX profile
  689ed88... codegen: Fix compiling without pkg-config package (POSIX)
  2afbc14... posix: Bind va_list and add string.concat() (POSIX)

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