use new SSL certs on Bugzilla

after we got a new bugzilla.wm.org cert
now for real resolving ..

RT #5011

follow-up of commit 529652c8cdaeed25d10bf6c64de67c909ab34bd0

Change-Id: I5afcdcc8c23ddec629205b8fbae46bb3f60f71d7
Merge "use new SSL certs on Bugzilla" into production