Increase ConnectTimeout during devinstall test.

We are seeing us hit this connect timeout on builders without
any vm errors outside of ssh not connecting.

BUG=chromium:273804
TEST=Ran it on a test image.

Change-Id: I31be289bf4926372be61b865fa6bb534ff0a0d36
Reviewed-on: https://gerrit.chromium.org/gerrit/65966
Tested-by: Chris Sosa <sosa@chromium.org>
Reviewed-by: Alex Miller <milleral@chromium.org>
Commit-Queue: Chris Sosa <sosa@chromium.org>
1 file changed