Migrate InternetAddressType.ANY -> InternetAddressType.any
Migrate InternetAddressType.ANY -> InternetAddressType.any

In documentation comment for `InternetAddress.lookup`.
This should make API docs a little bit prettier.

Change-Id: Ie969756a54e13b2efbef17a1a78fa0ffb8670dec
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/194063
Auto-Submit: Jonas Jensen <c9327fa216ae2ef84df7c55b809d4ba270141b48@google.com>
Reviewed-by: Jonas Termansen <092ec58085ae5e368bc39d18752740ff81a2d09c@google.com>
Commit-Queue: Jonas Termansen <092ec58085ae5e368bc39d18752740ff81a2d09c@google.com>

dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk