codeql: setup buf

Author: jentfoo

.github/workflows/codeql.yaml

@@ -24,6 +24,7 @@ jobs:
     steps:
     - name: Checkout repository
       uses: actions/checkout@v4
+      uses: bufbuild/buf-setup-action@2211e06e8cf26d628cda2eea15c95f8c42b080b3
 
     - name: Initialize the CodeQL tools for scanning
       uses: github/codeql-action/init@v3