[gjs] (12 commits) ...Merge branch 'mozjs102prep' into 'master'

[Philip Chimento <pchimento src gnome org>]

Summary of changes:

  5de5a4f... js: Use JS::PropertyKey::isVoid (*)
  0ebe34f... boxed: Replace use of JS_AtomizeAndPinJSString() (*)
  a987fee... js: Use length overload of JS::NewArrayObject() (*)
  0cbbf53... global: Combine compilation and execution in bootstratp (*)
  334e9f6... object: Add constructor argument (*)
  9786798... boxed: Adapt to namespaced SetReservedSlot API (*)
  2b1e8df... cairo-context: Move $dispose() implementation inside CairoC (*)
  854d19d... js: Replace class private pointers with reserved slots (*)
  1087d73... CI: No need to use mozjs78 builddeps for mozjs91 job (*)
  13800e0... CI: Build mozjs102 images (*)
  6e4aa01... CI: Work around IWYU bug (*)
  ed45998... Merge branch 'mozjs102prep' into 'master'

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