[libsoup] (6 commits) Non-fast-forward update to branch wip/http2

[Patrick Griffis <pgriffis src gnome org>]

The branch 'wip/http2' 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:

  19b7d6f... docker: Add http2 dependencies
  c12c526... ci: Bump image version
  419dd42... Add initial HTTP2 backend
  9ff46e0... tests: fix http2 tests
  c218bf6... fixup! Add initial HTTP2 backend
  fa6673c... fixup! Add initial HTTP2 backend
  de4d446... fixup! Add initial HTTP2 backend

Commits added to the branch:

  500098e... meson: Fix generation of gtk-doc documents and enable it in (*)
  6b9b7c4... connection: rework state changes (*)
  5be8f37... docker: Add http2 dependencies
  898da92... ci: Bump image version
  12eeedc... Add initial HTTP2 backend
  794b89b... tests: fix http2 tests

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