add protoc

Author: Clément Dussieux

.github/workflows/build_server_and_tag.yml

@@ -68,6 +68,13 @@ jobs:
         with:
           toolchain: stable
 
+      - name: Install protoc
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y protobuf-compiler
+          sudo apt-get install -y libprotobuf-dev
+          sudo apt-get install -y libprotoc-dev
+
       - name: Rust build
         run: |
           echo "Building server"