Upgrade rust/crates/structopt to 0.3.22 am: 108a00fc51 am: e3b7557ae7

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/structopt/+/1791038

Change-Id: Ic7b8cce94fa273d8e19cdb9fa8da583821130b94