feat(to-delete): temorary run workflow on pull_request

Author: daniel-herrero

.github/workflows/github-dashboard.yml

@@ -22,6 +22,17 @@ on:
         description: 'S3 prefix to publish under (use e.g. github-dashboard-test when verifying from a branch)'
         required: false
         default: 'github-dashboard'
+  # TEMPORARY — REMOVE BEFORE MERGING TO MAIN.
+  # workflow_dispatch can't be triggered from a branch until the workflow file
+  # exists on main; pull_request has no such restriction, so this lets PR #772
+  # actually run to verify these changes. Scoped to this script's own paths so
+  # it doesn't fire on unrelated PRs — but every push here still publishes for
+  # real to s3://kaleidos-qa-reports/github-dashboard/latest/ and posts to the
+  # real Mattermost channel (pull_request has no s3_prefix input to redirect it).
+  pull_request:
+    paths:
+      - '.github/workflows/github-dashboard.yml'
+      - 'scripts/github-dashboard/**'
 
 permissions:
   contents: read