ci: trigger fp-stability on every push

Author: sbryngelson

.github/workflows/fp-stability.yml

@@ -22,9 +22,8 @@ name: FP Stability
 # Build takes ~20 min uncached; cached runs restore in ~30 s.
 
 on:
-  schedule:
-    - cron: '0 5 * * 1'   # Weekly Monday 5 AM UTC
-  workflow_dispatch:       # Manual trigger
+  push:
+  workflow_dispatch:
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}