changed the build image name

.gitlab-ci.yml

@@ -7,7 +7,7 @@ stages:
 variables:
   ## Name for the generated image. Change this if you wish, but watch out
   ## for special characters and spaces!
-  DOCKER_IMAGE_NAME: ${DOCKER_REGISTRY}/tjts5901TeamFrozen
+  DOCKER_IMAGE_NAME: ${DOCKER_REGISTRY}/tjts5901teamfrozen
   DOCKER_TAG: $CI_COMMIT_REF_SLUG
 
   ## (Optional) More verbose output from pipeline. Enabling it might reveal secrets.