Gardening: mark inspector/console/console-format-table.html as flaky timeout

BUG=377573
TBR=esprehn,lushnikov

Review URL: https://codereview.chromium.org/300063004

git-svn-id: svn://svn.chromium.org/blink/trunk@174823 bbb929c8-8fbe-4397-9dbb-9b2b20218538