Add CI workflow for Ruby with linting and testing

Author: webit-schwarzer

.github/workflows/ci.yml

@@ -0,0 +1,38 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  lint:
+    name: Rubocop
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Ruby einrichten
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: "3.1.2"
+          bundler-cache: true
+
+      - name: Lint
+        run: bundle exec rubocop
+
+  test:
+    name: Tests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Ruby einrichten
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: "3.1.2"
+          bundler-cache: true
+
+      - name: Tests ausführen
+        run: bundle exec rake test