fix: protoc for ci

Author: keyleu

.github/workflows/sp1.yml

@@ -30,6 +30,9 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
+      - name: Install Protoc
+        run: sudo apt-get update && sudo apt-get install -y protobuf-compiler
+
       - name: Cache Build artifacts
         uses: Swatinem/rust-cache@v2.8.2
         with: