[Fedora-spins] Create Fedora Security Lab iso again

[Fabian Affolter]

Hi guys,

It seems that I missed to update Fedora 29 Release Spins page. The
Security Lab was tested [2] during the cycle but not shipped for F29
because I didn't signed off.

Ok, can happen but it pretty much seems that history is repeating itself.

The bigger issue now is the nightly composes are missing (last build:
2018-09-19). Looks like that one removed the Security Lab from all build
processes.

Last time it was pretty hard to get the builds for the current release.
This time I will focus on the next release but it would be nice to have
the nightly builds back.

Thanks

Kind regards,

Fabian

[1] https://fedoraproject.org/wiki/Releases/29/Spins
[2] https://www.happyassassin.net/testcase_stats/29/Security_Lab.html
[3] https://www.happyassassin.net/nightlies.html