Add GHA tests workflow

.github/workflows/rust-tests.yaml

@@ -0,0 +1,36 @@
+name: Rust tests
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+concurrency:
+  group: ${{ github.ref }}-${{ github.workflow }}
+  cancel-in-progress: true
+
+jobs:
+  rust-tests:
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Install Protoc
+        uses: arduino/setup-protoc@v1
+        with:
+          version: "3.6.1"
+
+      - name: Add wasm32-unknown-unknown target
+        run: rustup target add wasm32-unknown-unknown
+
+      - name: Build binary for test
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+
+      - name: Run Tests
+        uses: actions-rs/cargo@v1
+        with:
+          command: test