[vala] (19 commits) Non-fast-forward update to branch wip/valadoc-code-context

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/valadoc-code-context' 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:

  f1d39c8... valadoc: Drop duplicated code to add source files and use C
  3494acc... valadoc: Update API tests
  72c2faf... vala: Move setting of target profile into CodeContext
  013dd42... vala: Add Profile.LIBC as synonym for POSIX and accept "lib

Commits added to the branch:

  d450ac0... gio-2.0: Fix File.replace_contents_bytes_async() (*)
  48de3bb... codegen: Cast instance parameter for property access in obj (*)
  ba7baed... tests: Fix try_parse() tests to not compare to already free (*)
  47b0b25... codegen: Don't check boolean values for (in)equality in GTa (*)
  5aef500... gstreamer: Update from 1.15+ git master (*)
  dd53026... vapi: Update GIR-based bindings (*)
  ec76cdf... gtk+-3.0: Update to 3.24.2+a8e07254 (*)
  3d1cc6f... gtk+-4.0: Update to 3.94.0+4404afc9 (*)
  8e4a0f7... docs: Add a basic CONTRIBUTING.md file that links to the re (*)
  c69e606... tests: Extend "DBus errors" tests to increase coverage (*)
  cf791ef... gdbus: Properly set annotations field of GDBus*Info struct  (*)
  b526035... codegen: Add missing data parameter to GTypeInfo callbacks (*)
  85bfb58... sqlite3: Correct return C type of Statement.column_text & V (*)
  0adcacc... gdbus: Cast instance and result of g_async_initable_new_fin (*)
  efb355e... gobject-2.0: Minor syncing from GIR
  d377a01... valadoc: Drop duplicated code to add source files and use C
  ee562b0... valadoc: Update API tests
  909c8d3... vala: Move setting of target profile into CodeContext
  fa8699c... vala: Add Profile.LIBC as synonym for POSIX and accept "lib

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