[gjs] (18 commits) ...Merge branch 'september-maintenance' into 'master'

[Philip Chimento <pchimento src gnome org>]

Summary of changes:

  5d3506c... maint: Remove obsolete unittest.gdb
  9732266... maint: Remove weird indentation from Meson subproject file
  2466935... examples: Fix Clutter example
  9694091... maint: Remove Mozilla license from stack.cpp
  04f7b61... maint: Convert all existing license/copyright comments to S
  d74a189... maint: Add MIT license to clang-format hooks
  516cb55... maint: Add license to files that were copied from GLib
  d908d99... maint: Add GPL license and copyright to example copied from
  015a4d4... maint: Replace clutter example image with a known license-f
  cd9fd1d... maint: Add dual MIT/LGPL license to all GJS files that didn
  99de18c... CI: Make clang jobs actually use clang
  b68f9c9... maint: Mark parameters maybe_unused if only used in asserts
  fcc8dee... jsapi-util: Remove unused value read from /proc/self/stat
  4b90d2a... jsapi-util: Change upper limit of RSS trigger to uint32 max
  e5aedf5... tests: Remove constexpr from get_random_number
  44ad776... profiler: More specific struct initializer expressions
  8ec6c1b... CI: Add workaround for IWYU bug
  8160e4a... Merge branch 'september-maintenance' into 'master'