ci: install protoc for fila-server build

Author: vieiralucas

.github/workflows/ci.yml

@@ -39,6 +39,10 @@ jobs:
             ~/.cargo/git
           key: fila-server-${{ runner.os }}-${{ hashFiles('fila/Cargo.lock') }}
           restore-keys: fila-server-${{ runner.os }}-
+      - name: Install protoc
+        uses: arduino/setup-protoc@c65c819552d16ad3c9b72d9dfd5ba5237b9c906b # v3
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
       - run: cargo build --release -p fila-server --manifest-path fila/Cargo.toml
       - run: python -m pytest tests/ -v
         env: