chore: remove temporary push trigger from doc-freshness

Revert the test-only push trigger now that the workflow run validated the
comment 5/6 fixes (Node 22, fail-loud CLI help, embedded-template generation).
Restores schedule + workflow_dispatch only.

Author: EMaher

.github/workflows/doc-freshness.lock.yml

@@ -6,10 +6,6 @@ description: >
 on:
   schedule: weekly on monday
   workflow_dispatch:
-  # TEMP: trigger on push to this branch to test before merge — REVERT before merge
-  push:
-    branches:
-      - emaher-doc-freshness-workflow
 
 permissions:
   contents: read