Pass the CI_PROJECT_URL as a build argument

.utilities/build.sh

@@ -23,6 +23,7 @@ docker build \
     --build-arg BUILD_DATE=$(date -u +"%Y-%m-%dT%H:%M:%SZ") \
     --build-arg VCS_REF=$(git rev-parse --short HEAD) \
     --build-arg VERSION=$latest_version \
+    --build-arg PROJECT_URL=$CI_PROJECT_URL \
     --tag $CI_PROJECT_NAME:build .
 
 docker save --output ../$CI_PROJECT_NAME.tar $CI_PROJECT_NAME:build