Infrastructure: Add Actions testing file

.github/workflows/main.yml

@@ -0,0 +1,20 @@
+name: build-and-test
+
+on:
+  push:
+  workflow_dispatch:
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-java@v3
+        with:
+          distribution: 'liberica'
+          java-version: '17.0'
+          java-package: jdk
+
+      - run: sbt -v update compile
+      - run: sbt -v test