Merge "Make libfutures_executor available to DnsResolver" am: 2906200268 am: 1fda88ce2e am: b7602eab61

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

Change-Id: Iae7d23179978d42fb91bdf9ee9bc0d5ebd1b49ba