Fixes#39702
**Root Cause:**
Cancelling a reusable workflow caller wrote it `cancelled` right away,
even while a child was still `cancelling`. When the runner acknowledged,
the caller did not change, so the run was never refreshed and stayed
`cancelling`.
SQLite hid this because the child is cancelled a second time, which
re-aggregates the caller, while MySQL reports no affected rows for that
unchanged update.
**Changes:**
- A caller now takes its status only from its children: it stays
`cancelling` until its last child finishes, and its final status then
refreshes the run.
- Cancelling a run whose jobs are all done only settles the run, which
did not wake the runs waiting for its concurrency group. It now does, so
force-cancelling an already stuck run also frees them.
---------
Signed-off-by: BenV <165034+benv666@users.noreply.github.com>
Co-authored-by: Zettat123 <zettat123@gmail.com>
BenVandZettat123
c344004e53