Merge pull request #77 from zalando-stups/integration-test

Add integration step.

Author: Jan-M

.github/workflows/workflow.yml

@@ -42,3 +42,5 @@ jobs:
           ${{ runner.os }}-maven-
     - name: Build with Maven
       run: ./mvnw -B clean verify
+    - name: Run integration tests
+      run: ./mvnw verify -Pintegration-test