Gardening: Mark inspector-protocol/debugger/debugger-terminate-dedicated-worker-while-paused.html as a flaky crasher on Debug

TBR=hayato@chromium.org,jarin@chromium.org
BUG=363280

Review URL: https://codereview.chromium.org/235453011

git-svn-id: svn://svn.chromium.org/blink/trunk@171501 bbb929c8-8fbe-4397-9dbb-9b2b20218538