Update URI in bugtraq.logregex description

Summary: HTTPS makes the world a safer place.

Test Plan: Go to /config/edit/bugtraq.logregex/ and click the URI in the description. Carefully compare what you clicked and where you ended up. Perhaps the real treasure was the friends you made along the way?

Reviewers: O1 Blessed Committers, valerio.bozzolan

Reviewed By: O1 Blessed Committers, valerio.bozzolan

Subscribers: tobiaswiese, valerio.bozzolan, Matthew, Cigaryno

Differential Revision: https://we.phorge.it/D25606