sched_ext: Merge branch 'for-6.16-fixes' into for-6.17

Pull sched_ext/for-6.16-fixes to receive:

 c50784e9 ("sched_ext: Make scx_group_set_weight() always update tg->scx.weight")
 33796b91 ("sched_ext, sched/core: Don't call scx_group_set_weight() prematurely from sched_create_group()")

which are needed to implement CPU bandwidth control interface support.

Signed-off-by: Tejun Heo <tj@kernel.org>