Install protoc in publish step of release CI (#25)

Author: shsms

.github/workflows/release.yaml

@@ -71,8 +71,13 @@ jobs:
       id-token: write
     steps:
       - uses: actions/checkout@v5
+
       - uses: rust-lang/crates-io-auth-action@b7e9a28eded4986ec6b1fa40eeee8f8f165559ec  # v1.0.3
         id: auth
+
+      - name: Install protoc
+        run: sudo apt-get update && sudo apt-get install -y protobuf-compiler
+
       - run: cargo publish
         env:
           CARGO_REGISTRY_TOKEN: ${{ steps.auth.outputs.token }}