ipa-cacert-manage: handle alternative tracking request CA name
For an externally-signed CA, if an earlier run of ipa-cacert-manage
was interrupted, the CA name in the IPA CA tracking request may have
been left as "dogtag-ipa-ca-renew-agent-reuse" (it gets reverted to
"dogtag-ipa-ca-renew-agent" at the end of the CSR generation
procedure). `ipa-cacert-manage renew` currently only looks for a
tracking request with the "dogtag-ipa-ca-renew-agent" CA, so in this
scenario the program fails with message "CA certificate is not
tracked by certmonger".
To handle this scenario, if the IPA CA tracking request is not
found, try once again but with the "dogtag-ipa-ca-renew-agent-renew"
Part of: https://pagure.io/freeipa/issue/6858
Reviewed-By: Florence Blanc-Renaud <firstname.lastname@example.org>