chore: add tests in DroneCI pt2

.drone.yml

@@ -9,7 +9,26 @@ steps:
       - ./mvnw package -B -DskipTests=true
   - name: Tests
     image: quay.io/testcontainers/dind-drone-plugin
-    build_image: eclipse-temurin:17-jdk
+    environment:
+      CI_WORKSPACE: "/drone/src"
+    settings:
       cmd: ./mvnw test
+      build_image: eclipse-temurin:17-jdk
       prefetch_images:
         - "postgres:13-alpine"
+    volumes:
+      - name: dockersock
+        path: /var/run
+
+# Specify docker:dind as a service
+services:
+  - name: docker
+    image: docker:dind
+    privileged: true
+    volumes:
+      - name: dockersock
+        path: /var/run
+
+volumes:
+  - name: dockersock
+    temp: {}