Remove duplicate dependencies (#3961)

* chore: Replace surf with reqwest

Removes a lot of older, duplication versions of some dependencies
(roughtly 90 dependencies removed in total)

* chore: Remove syn 0.11

* chore: Remove unnecessary features from ptree

Removes some more duplicate dependencies

* cargo update

* Ensure we run the fetch and post plugins on the tokio runtime

* Fix clippy warning

* fix: Github requires a user agent on requests

Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>

crates/nu-parser/src/lib.rs

@@ -1,6 +1,4 @@
 #[macro_use]
-extern crate derive_is_enum_variant;
-#[macro_use]
 extern crate derive_new;
 
 mod errors;