Title: #728: ci: add Fedora 29
uses an invalid certificate. It's issued for misc.synopsys.com
couple of other strange sites using the subjectAltName, but none of them matches
I suggest we disable the travisCI coverity integration for the time being. We can also use
incecure checks, but..
See the full comment at https://github.com/SSSD/sssd/pull/728#issuecomment-452288921