Update .gitlab-ci.yml

.gitlab-ci.yml

+image: docker:git
+
+services:
+ docker:dind
+
+before_script:
+  - export REVISION=$(git rev-parse --short HEAD)
+  - docker login --username gitlab-ci-token --password $CI_BUILD_TOKEN $CI_REGISTRY
+
+after_script:
+  - docker logout $CI_REGISTRY
+
 stages:
-- analysis
+  - analysis
 
 sonarqube:
   stage: analysis