[gssdp] (13 commits) Non-fast-forward update to branch wip/gtk4

[Jens Georg <jensgeorg src gnome org>]

The branch 'wip/gtk4' 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:

  7bf6646... sniffer: Port to GTK4
  1eeb3c7... Enable context menu
  8888a58... sniffer: Add logo to about dialog
  9c04c69... ci: Add gtk4 devel

Commits added to the branch:

  c3a2aff... build: Move config.h to private subdirectory (*)
  f115fee... build: Do not make config.h part of the dependency (*)
  2e6a9c9... doc: Fix warnings regarding parameters (*)
  951a6ad... doap: Fix some links (*)
  b018ff5... all: LGPL-2.0 -> LGPL-2.1 (*)
  0e8bbf6... examples: Remove old GLib initializer (*)
  8d9f999... all: Unconditionally include config.h (*)
  f5af3f8... all: Add warning if using too new API (*)
  41981ff... net-posix: Disable deprecation warning (*)
  69c439e... sniffer: Port to GTK4
  1b8c2c6... Enable context menu
  345d67d... sniffer: Add logo to about dialog
  c305d53... ci: Add gtk4 devel

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