don't run changelog verification on auto prs (#3018)

Author: iscai-msft

.github/workflows/consistency.yml

@@ -32,7 +32,7 @@ jobs:
 
       - run: pnpm change verify
         name: Check changelog
-        if: ${{ !startsWith(github.head_ref, 'publish/') && !startsWith(github.head_ref, 'dependabot/') && !startsWith(github.head_ref, 'backmerge/') }}
+        if: ${{ !startsWith(github.head_ref, 'publish/') && !startsWith(github.head_ref, 'dependabot/') && !startsWith(github.head_ref, 'backmerge/') && !startsWith(github.head_ref, 'auto-microsoft-update/') }}
 
       - run: pnpm check-version-mismatch
         name: Check version mismatch