[gnome-builder] (18 commits) Non-fast-forward update to branch wip/tintou/toolchain

[Corentin Noël <corentinnoel src gnome org>]

The branch 'wip/tintou/toolchain' 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:

  8b183fa... toolchain: add the IdeToolchain object
  f9a4e59... Changed the IdeToolchain to be more generic, created IdeSim
  372e239... Replace load by load_async/finish and use toolchain-added/r
  56c0b12... Simplify the code, add a load method to CMake and Meson too
  35aa18a... Make GbpCMakeToolchain and GbpMesonPlugin IdeSimpleToolchai
  2b7dc0f... Make IdeToolchainManager an GAsyncInitable
  5a226da... Do not attempt to load the toolchain when the manager is no

Commits added to the branch:

  e95f0be... xml-pack: fix condition in dtd validation (*)
  bca7cc0... html-preview: disconnect signals to avoid leaking (*)
  e3410be... terminal: don't leak terminal search (*)
  03749b1... build-system: post-process build flags in aggregate (*)
  5e74e55... thread-pool: reduce compiler/indexer threads (*)
  2b81e2f... gjs: only run on indexer subprocess concurrently (*)
  92a40e8... clang: incremental port to IdeTask (*)
  4e7c5df... clang: give module access to llvm flags (*)
  f849f81... clang: cook build flags into include llvm path (*)
  be56234... pipeline: log before removing pipeline entry (*)
  0c72d97... release 3.29.1 (*)
  dd2f059... toolchain: add the IdeToolchain object
  a7b9151... Changed the IdeToolchain to be more generic, created IdeSim
  4ac88be... Replace load by load_async/finish and use toolchain-added/r
  b4de974... Simplify the code, add a load method to CMake and Meson too
  ffe303c... Make GbpCMakeToolchain and GbpMesonPlugin IdeSimpleToolchai
  7ed87a2... Make IdeToolchainManager an GAsyncInitable
  4dd91f9... Do not attempt to load the toolchain when the manager is no

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