chore: Run rustfmt on exercises

exercises/conversions/try_from_into.rs

@@ -2,7 +2,7 @@
 // Basically, this is the same as From. The main difference is that this should return a Result type
 // instead of the target type itself.
 // You can read more about it at https://doc.rust-lang.org/std/convert/trait.TryFrom.html
-use std::convert::{TryInto, TryFrom};
+use std::convert::{TryFrom, TryInto};
 
 #[derive(Debug)]
 struct Color {