deps: c-ares: cherry-pick 64df444
Backport https://github.com/c-ares/c-ares/pull/802 which fixes compilation error when building for Windows with UNICODE defined.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Backport https://github.com/c-ares/c-ares/pull/802 which fixes compilation error when building for Windows with UNICODE defined.