refactor: Updated the 2018 idiom lint to the 2021_compatibility lint

src/models/servarr_data/radarr/radarr_data.rs

@@ -71,7 +71,7 @@ pub struct RadarrData<'a> {
   pub add_list_exclusion: bool,
 }
 
-impl<'a> RadarrData<'a> {
+impl RadarrData<'_> {
   pub fn reset_delete_movie_preferences(&mut self) {
     self.delete_movie_files = false;
     self.add_list_exclusion = false;

src/models/servarr_data/sonarr/sonarr_data.rs

@@ -76,7 +76,7 @@ pub struct SonarrData<'a> {
   pub version: String,
 }
 
-impl<'a> SonarrData<'a> {
+impl SonarrData<'_> {
   pub fn reset_delete_series_preferences(&mut self) {
     self.delete_series_files = false;
     self.add_list_exclusion = false;