Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -66,6 +66,7 @@ diag:
 build:
   stage: build
   image: docker:24.0.9
+  extends: .build_template
   before_script:
     - echo "Building Docker image for commit:" ${CI_COMMIT_SHORT_SHA}
     - echo "Logging in to Docker registry..."