Rename crate to nym-task (#3064)

* Rename to nym-task

* Update imports to use nym_task

* Update to nym_task in explicit module prefix

* Touchups and rustfmt

* rustfmt

* crate metadata

* fix nym-connect-android

nym-api/src/node_status_api/cache/refresher.rs

@@ -12,8 +12,8 @@ use crate::{
     storage::NymApiStorage,
     support::caching::CacheNotification,
 };
+use nym_task::TaskClient;
 use std::time::Duration;
-use task::TaskClient;
 use tokio::sync::watch;
 use tokio::time;