update

Installing the protobuffer compiler before building the Rust server.

Author: NoelStephensUnity

Tools/CI/run_cmb_service.sh

@@ -67,6 +67,10 @@ cd ./mps-common-multiplayer-backend/runtime
 
 # Install rust
 curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+
+# Install ProtoBuffer Compiler
+apt install -y protobuf-compiler
+
 # Add the cargo bin directory to the PATH
 export PATH="$HOME/.cargo/bin:$PATH"