chore: scope prek pre-push hook to TruffleHog only (#11609)

Co-authored-by: Pablo F.G <pablo.fernandez@prowler.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

ui/.pre-commit-config.yaml

@@ -1,5 +1,10 @@
 orphan: true
 
+# Hooks run on commit only by default;
+# NOTE: default_stages does NOT override a hook's manifest stages, so fixers shipping pre-push in their
+# manifest need an explicit stages: ["pre-commit"] below to stay off push.
+default_stages: [pre-commit]
+
 repos:
   - repo: local
     hooks: