[infra] Fix AUTHORS check

It's looking for "google.com" but skia-swarming-bots doesn't have that
prefix.

Bug: skia:7833, skia:7050
Change-Id: I851453a20f46cd62772b9301226a315a6076ff89
Reviewed-on: https://skia-review.googlesource.com/123980
Reviewed-by: Ravi Mistry <rmistry@google.com>
Commit-Queue: Eric Boren <borenet@google.com>
1 file changed