Update check-links.yml

Author: lzchen

.github/workflows/check-links.yml

@@ -23,15 +23,17 @@ jobs:
   check-links:
     runs-on: ubuntu-latest
     needs: changedfiles
-    if: ${{needs.changedfiles.outputs.md}}
+    if: |
+      github.event.pull_request.user.login != 'opentelemetrybot' && github.event_name == 'pull_request'
+      && ${{needs.changedfiles.outputs.md}}
     steps:
       - name: Checkout Repo
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
       - name: Install markdown-link-check
-        run: npm install -g markdown-link-check
+        run: npm install -g markdown-link-check@v3.12.2
 
       - name: Run markdown-link-check
         run: |