[automerger skipped] Enable DNS probe in DoT validation by default in R am: 80c211ac -s ours

am skip reason: Merged-In If80569a98244817b69909319f0c1a3b7523354cf with SHA-1 7be0fc49 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/DnsResolver/+/15019756

Change-Id: I8c85d0ddbd02b182a1ac548c80c9af84c7ee3693