[Code Health] Fix misc-const-correctness build warning am: 50746ee1 am:...

[Code Health] Fix misc-const-correctness build warning am: 50746ee1 am: 86fed968 am: 73557dca am: 73d2ef4f am: 7317b41e am: 2b68d228

Original change: https://android-review.googlesource.com/c/platform/packages/modules/DnsResolver/+/2509035



Change-Id: I3231f30cf0af5fbaab944404f579aedc18beb0bf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>