Try replacing Travis with Github Actions

.github/workflows/scala.yml

@@ -0,0 +1,56 @@
+name: Exam
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    services:
+      postgres:
+        image: postgres
+        env:
+          POSTGRES_PASSWORD: postgres
+          POSTGRES_USER: postgres
+          POSTGRES_DB: postgres
+
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          - 5432:5432
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up JDK 21
+      uses: actions/setup-java@v2
+      with:
+        java-version: 21
+        distribution: temurin
+    - uses: actions/checkout@v4
+    - name: Set up Node 18
+      uses: actions/setup-node@v4
+      with:
+        node-version: 18.x
+    - name: Set up Database
+      run: |
+        createuser sitnet
+        createdb --owner sitnet sitnet_test
+        psql -c "ALTER USER sitnet WITH PASSWORD 'sitnetsitnet';"
+      #run: psql -c 'CREATE DATABASE sitnet_test WITH OWNER 'sitnet';' -U postgres
+    - name: Build UI
+      run: |
+        cd ui
+        rm -rf node_modules
+        npm i
+        npm run check-format
+        npm run check-lint
+        npm run build
+        cd ..
+    - name: Run tests
+      run: sbt test
+
+