star.wikimedia.org cert chain fix

the star.wikimedia.org certificate was recently reissued, this has
caused the certificate chain to break.  I'm not sure how it worked
before this point, since we reissued, not replaced the cert.  However,
it is rapidssl, so this should fix it.

bug: 59910

Change-Id: I1ba6ab4461f94a6cb199b19615be126bde7a3b07
Merge "star.wikimedia.org cert chain fix" into production