Update sync-main.yml

Author: dilanbhalla

.github/workflows/sync-main.yml

@@ -31,6 +31,8 @@ jobs:
           git merge codeql-cli/latest
       - name: Setup CodeQL
         uses: ./.github/actions/fetch-codeql
+        with:
+          channel: 'release'
       - name: Compile PowerShell Queries
         run: |
           codeql query compile --check-only --keep-going powershell/ql/src