[fenix] No issue: Update Flank to v21.08.1
commit35a2f01da8825783367921632ed68e559574e06e
authorAaron Train <aaron.train@gmail.com>
Tue, 24 Aug 2021 16:39:19 +0000 (24 12:39 -0400)
committermergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
Wed, 25 Aug 2021 14:58:48 +0000 (25 14:58 +0000)
tree416a328b9a40aa37a700916aeca0fb2e94e35e8e
parenta15a7747029ebaec0e498dfcdeaaf07c6172c566
[fenix] No issue: Update Flank to v21.08.1

Flank https://github.com/Flank/flank/releases/tag/v21.08.1 has the fix for avoiding crash one of their API calls that we hit a couple times.
mobile/android/fenix/taskcluster/docker/ui-tests/Dockerfile