Draft: Gitlab ci image build

sync ci image build to fit the manual builds https://reseed-documentation.rd.ruhr-uni-bochum.de/system/deployment/2_image_building/

.gitlab-ci.yml

@@ -35,7 +35,7 @@ build-job:
     - mkdir -p $RUBY_CACHE_DIR
     - apk update --cache-dir $APK_CACHE_DIR && apk upgrade --cache-dir $APK_CACHE_DIR && apk add --cache-dir $APK_CACHE_DIR $APK_PACKAGES
     - sh hyrax/deploy_info.sh  && cat ./hyrax/deploy_info.json
-    - export DOCKER_IMAGE_TAG="$(git describe --all --always --long --tags | sed -e 's|^heads/||' -e 's|/|_|g')_$(jq -r '.last_deployed' < hyrax/deploy_info.json | sed 's|\+00:00$|UTC|g;s|:|-|g')"
+    - export DOCKER_IMAGE_TAG="$(git describe --all --always --long --tags | sed -e 's|^heads/||' -e 's|/|_|g')_$(jq -r '.last_deployed' < hyrax/deploy_info.json | sed -E 's|\+00:00$|UTC|g;s|:|-|g')"
     - echo $DOCKER_IMAGE_TAG
     - cd hyrax && bundle config set --local path $RUBY_CACHE_DIR && bundle install --jobs 4 --retry 3