Added --no-cache option to CI build

.gitlab-ci.yml

@@ -11,7 +11,7 @@ before_script:
 
 build:
     stage: build
-    script: docker build -t registry-gitlab.xlab.si/cyberwiser/$SERVICE:$VERSION .
+    script: docker build --no-cache -t registry-gitlab.xlab.si/cyberwiser/$SERVICE:$VERSION .
 
 test:
     stage: test