So that we can roll the cit.py pin without breaking other services.

BUG=

Change-Id: I5992d753d8ddf23c29f1ef6c09866a86c7f7c2ae
Reviewed-on: https://chromium-review.googlesource.com/450760Reviewed-by: Daniel Jacques <dnj@chromium.org>
Commit-Queue: Ryan Tseng <hinoka@chromium.org>