(rust): Add Action to test Rust Lambda

Author: alex9smith

.github/workflows/test-rust.yaml

@@ -0,0 +1,17 @@
+name: Test Rust Lambda
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Run Rust tests
+        run: |
+          cd lambda/rust
+          cargo test