working directory for buf

.github/workflows/build-buf.yml

@@ -24,6 +24,7 @@ jobs:
           cache-dependency-path: 'service/go.mod'
 
       - uses: bufbuild/buf-action@v1.1.0
+        working-directory: proto
         with:
           token: ${{ secrets.BUF_TOKEN }}
           # Change setup_only to true if you only want to set up the Action and not execute other commands.