change CircleCI link to go to workflows
change CircleCI link to go to workflows

Related to https://github.com/cBioPortal/cbioportal/issues/7097

Former-commit-id: 09e78eff85f2689980215b50018be6f21ecfdff0
alisman/cbioportal-frontend,cBioPortal/cbioportal-frontend,cBioPortal/cbioportal-frontend,alisman/cbioportal-frontend,cBioPortal/cbioportal-frontend,cBioPortal/cbioportal-frontend,alisman/cbioportal-frontend,alisman/cbioportal-frontend,alisman/cbioportal-frontend,alisman/cbioportal-frontend,cBioPortal/cbioportal-frontend,cBioPortal/cbioportal-frontend