Merge "Test: Create single PrivateDnsConfiguration in...

Merge "Test: Create single PrivateDnsConfiguration in PrivateDnsConfigurationTest and make it static" am: 5289b1b2 am: 500cdbdf am: 34d775b5 am: f1504bb0

Original change: https://android-review.googlesource.com/c/platform/packages/modules/DnsResolver/+/2600245



Change-Id: Idd48c81bc0415bc8cb17551a3ee42998a4247682
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>