fix: debug failure writing to GITHUB_OUTPUT

Add some debug statements

action.yml

@@ -96,7 +96,9 @@ runs:
         log "Retrieved index: $pr_number"
         log "Expected PR URL: $GITHUB_SERVER_URL/$GITHUB_REPOSITORY/pulls/$pr_number"
 
-        echo "pr-number=$pr_number" >> "$GIHUB_OUTPUT"
+        echo "GITHUB_OUTPUT=$GITHUB_OUTPUT"
+        ls -l "$GITHUB_OUTPUT"
+        echo "pr-number=$pr_number" >> "$GITHUB_OUTPUT"
     - name: Find previous comment (if present)
       # We want to generate a comment, and we we able to fin the PR number
       if: inputs.comment-on-pr == 'true' && steps.pr-number.outputs.pr-number != ''