[Code Health] Fix misc-const-correctness lint am: d11adb06 am: b01d0658...

[Code Health] Fix misc-const-correctness lint am: d11adb06 am: b01d0658 am: 66efd84e am: 3e8bf1ba am: d2b3fcee

Original change: https://android-review.googlesource.com/c/platform/packages/modules/DnsResolver/+/2555210



Change-Id: Ie274b583776b7ff90db32a60533402e1336288d0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>