Automatic merge from submit-queue (batch tested with PRs 62914, 63431). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
kubelet: fix flake in TestUpdateExistingNodeStatusTimeout
xref https://github.com/openshift/origin/issues/19443
There are cases where some process, outside the test, attempts to connect to the port we are using to do the test, leading to a attempt count greater than what we expect.
To deal with this, just ensure that we have seen *at least* the number of connection attempts we expect.
@liggitt
```release-note
NONE
```