Refine workflow: use v1 action version and improve step description

Co-authored-by: rajbos <6085745+rajbos@users.noreply.github.com>

Author: Copilot

.github/workflows/tag-rajbos.yml

@@ -18,8 +18,8 @@ jobs:
       pull-requests: write
 
     steps:
-      - name: Tag rajbos
-        uses: devops-actions/issue-comment-tag@v1.0
+      - name: Tag rajbos on new issue or PR
+        uses: devops-actions/issue-comment-tag@v1
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           username: rajbos