Merge "Make libfutures_executor available to DnsResolver" am: 2906200268 am: 1fda88ce2e

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/futures-executor/+/1742275

Change-Id: Ieba70fae1fe668814f1dba407bd5a30e29689e04