Fix test RemoteConnectionClosed not to fail to restart doh server am: a67518ee am: cf6bd556 am: eedcbf07 am: fc61f0cd

Original change: https://android-review.googlesource.com/c/platform/packages/modules/DnsResolver/+/2008796

Change-Id: I6b894451df0cd0dc34e4dd5abb87fb73d9569aef