fix(build): force the GIT_BRANCH var to use master for the branch in the dockerfile
fix(build): force the GIT_BRANCH var to use master for the branch in the dockerfile

fabric8io/fabric8-ui,fabric8-ui/fabric8-ui,fabric8io/fabric8-ui,fabric8-ui/fabric8-ui,fabric8-ui/fabric8-ui,fabric8-ui/fabric8-ui,fabric8io/fabric8-ui,fabric8io/fabric8-ui,fabric8-ui/fabric8-ui,fabric8io/fabric8-ui