Use repo-specific tree_status_url in skcms

Bug: skia:12393
Change-Id: I65e62f621ddc07f0e3220682ed37844d4917b88c
Reviewed-on: https://skia-review.googlesource.com/c/skcms/+/444559
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Commit-Queue: Ravi Mistry <rmistry@google.com>
1 file changed