work with img section in ci, test stage added

.gitlab-ci.yml

@@ -1,14 +1,24 @@
 stages:
+  - test
   - build
-#  - test
 
-build:
-  stage: build
+img: &img
   image: openjdk:22-jdk-slim
   before_script:
     - apt-get update && apt-get -qqy upgrade
+
+test:
+  <<: *img
+  stage: test
+  script:
+    - ./gradlew test
+
+build:
+  <<: *img
+  stage: build
   script:
     - ./gradlew clean build -Pvaadin.productionMode
   after_script:
     echo "_____________end_________________"
 
+