[automerger skipped] Fix the side channel attack by using aysnc DnsResolver...

[automerger skipped] Fix the side channel attack by using aysnc DnsResolver API with FLAG_NO_CACHE_STORE am: b9a10a82 am: f9f30e3f -s ours

am skip reason: Change-Id I37391ffe315b90c0cdfd86888c6bf68b2b89f601 with SHA-1 4eabbe3f is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/DnsResolver/+/11642056

Change-Id: Ia5cfc9951e1fe33bc876eb34e811fb3c1ad8efd7