Adds new builder name schema for "Canary-*".
Bug: skia:10477
Change-Id: I0906c6e2df0af405ae3a2138b0fdeb99a9375853
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/300700
Commit-Queue: Ravi Mistry <rmistry@google.com>
Reviewed-by: Eric Boren <borenet@google.com>
