[pango] (11 commits) ...Merge branch 'serializer-rewrite' into 'main'

[Matthias Clasen <matthiasc src gnome org>]

Summary of changes:

  f15cf8a... tabs: Add a missing setter (*)
  53d9610... serializer: Replace json-glib (*)
  1c4f09a... Add gtk_json_parser_set_error (*)
  f740844... serializer: Move all error handling to the parser (*)
  62e2e41... assorted serializer fixes (*)
  a94ad6b... testserialize: Fix the tests (*)
  ca7400b... Update tests for small changes in output (*)
  2c0aa8b... Small fixes (*)
  73f2764... Add pango_font_deserialize (*)
  2e1a0a4... jsonparser: Plug a memory leak (*)
  fdef430... Merge branch 'serializer-rewrite' into 'main'

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