update qa-dashboard ref to b4497ecd0a101c6531221ac5ffa25fff09bc38df
update qa-dashboard ref to b4497ecd0a101c6531221ac5ffa25fff09bc38df

jhoblitt/sandbox-jenkins-demo,lsst-sqre/sandbox-jenkins-demo,lsst-sqre/sandbox-jenkins-demo,jhoblitt/sandbox-jenkins-demo