[ER2] Quickstarts looks for an unexisting GIT_REF

Quickstarts fail because it looks for unexisting GIT_REF, so cloning git project fails.
In example look at https://github.com/jboss-fuse/application-templates/blob/application-templates-2.1.fuse-750055-redhat-00001/quickstarts/spring-boot-camel-template.json#L36. But https://github.com/fabric8-quickstarts/spring-boot-camel/tree/spring-boot-camel-1.0.0.fuse-750023-redhat-00001 does not exist.