ci: add install protoc step

.github/workflows/publish.yml

@@ -19,6 +19,9 @@ jobs:
           node-version: 20
           registry-url: "https://registry.npmjs.org/"
 
+      - name: Install protoc
+        run: sudo apt-get update && sudo apt-get install -y protobuf-compiler
+
       - name: Install deps
         run: npm install