GitLab

The bot has been running into test timeouts, so increase the number of
shards used to run tests. Might adjust the exact number of shards after.

Bug: 905842
Change-Id: Icf0ab65e70a0b48b7b97e95318ecabdac31d63aa
Reviewed-on: https://chromium-review.googlesource.com/c/1338569Reviewed-by: Ben Pastene <bpastene@chromium.org>
Reviewed-by: John Budorick <jbudorick@chromium.org>
Commit-Queue: Stephen Martinis <martiniss@chromium.org>
Cr-Commit-Position: refs/heads/master@{#608622}