Setup minitest CI with GitHub actions

Co-authored-by: Gitta van der Pol <[email protected]>

.github/workflows/minitest.yml

@@ -0,0 +1,28 @@
+name: Run minitest
+on:
+  pull_request:
+    branches: [version-2]
+jobs:
+  run-minitest:
+    runs-on: ubuntu-latest
+    services:
+      postgres:
+        image: postgres:16
+        ports: ["5432:5432"]
+        env:
+          POSTGRES_PASSWORD: postgres
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+      - name: Preparing database
+        run: bin/rails db:prepare
+      - name: Run tests
+        run: bin/rails test