Update Rust to 1.91 (#546)

* Update Rust to 1.91
* Fix new clippy issues

Author: atuchin-m

rust-toolchain.toml

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "1.90"
+channel = "1.91"
 components = ["clippy", "rustfmt" ]

src/lists.rs

@@ -12,19 +12,14 @@ use serde::{Deserialize, Serialize};
 use thiserror::Error;
 
 /// Specifies rule types to keep during parsing.
-#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
+#[derive(Debug, Clone, Copy, Serialize, Deserialize, Default)]
 pub enum RuleTypes {
+    #[default]
     All,
     NetworkOnly,
     CosmeticOnly,
 }
 
-impl Default for RuleTypes {
-    fn default() -> Self {
-        Self::All
-    }
-}
-
 impl RuleTypes {
     pub fn loads_network_rules(&self) -> bool {
         matches!(self, Self::All | Self::NetworkOnly)