Add protoc install step in CI

Author: TanmayArya-1p

.github/workflows/rust.yml

@@ -30,11 +30,14 @@ jobs:
       - name: Check Code Formatting
         run: cargo fmt --all -- --check
 
+      - name: Install protoc for gRPC server
+        run: sudo apt-get update && sudo apt-get install -y protobuf-compiler 
+
       - name: Run Clippy (Linter)
         run: cargo clippy --all-targets --all-features -- -D warnings
 
       - name: Build Project
         run: cargo build --verbose
 
       - name: Run Tests
-        run: cargo test --verbose
+        run: cargo test --verbose -- --test-threads=1