bisect-kit: enlarge threshold of DEPS matching window

This is just workaround. Needs rework this issue later.

BUG=chromium:900514
TEST=./bisect_cr_localbuild_internal.py init \
       --old 72.0.3588.0 --new 72.0.3589.0

Change-Id: I4540a13deeddf597e15d1d8caec81b3f96e0e364
Reviewed-on: https://chromium-review.googlesource.com/1309575
Commit-Ready: Kuang-che Wu <kcwu@chromium.org>
Tested-by: Kuang-che Wu <kcwu@chromium.org>
Reviewed-by: Chung-yih Wang <cywang@chromium.org>
1 file changed