fix(clippy): allow unused_mut for not(feature = "libtor") (#4425)

Description
---
Allows unused_mut for config variable if `not(all(unix, feature = "libtor"))`

Motivation and Context
---
mut is only required for `all(unix, feature = "libtor")`

How Has This Been Tested?
---
No clippy errors with/without libtor feature

applications/tari_console_wallet/src/main.rs

@@ -99,7 +99,7 @@ fn main_inner() -> Result<(), ExitError> {
         include_str!("../log4rs_sample.yml"),
     )?;
 
-    #[cfg_attr(feature = "libtor", allow(unused_mut))]
+    #[cfg_attr(not(all(unix, feature = "libtor")), allow(unused_mut))]
     let mut config = ApplicationConfig::load_from(&cfg)?;
 
     let runtime = tokio::runtime::Builder::new_multi_thread()