Merge "Test: Create single PrivateDnsConfiguration in...

Merge "Test: Create single PrivateDnsConfiguration in PrivateDnsConfigurationTest and make it static" am: 5289b1b2 am: 500cdbdf am: 31521dd9 am: 6d32138b

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



Change-Id: I8253b9123b374e09e88f9641a467e354df05c593
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>