This test includes an assertion that a client conn's state hook
is called exactly once, but some of the test cases can result in
two events occurring: A request completes and a connection closes.
Change the assertion to just check that the hook is called
at least once.
Fixes #76480
Change-Id: Ie1438581b072b10623eb3d5fe443294a639c9853
Reviewed-on: https://go-review.googlesource.com/c/go/+/725601
Commit-Queue: Damien Neil <dneil@google.com>
Auto-Submit: Damien Neil <dneil@google.com> Reviewed-by: Nicholas Husin <husin@google.com> Reviewed-by: Nicholas Husin <nsh@golang.org>
TryBot-Bypass: Damien Neil <dneil@google.com>