Fix clippy warning

Author: sosthene-nitrokey

src/lib.rs

@@ -45,7 +45,7 @@ use crate::parse::Input;
 #[derive(Clone, Copy)]
 struct CopyWrapper<'a, T>(&'a T);
 
-impl<'a, T: ToTokens> ToTokens for CopyWrapper<'a, T> {
+impl<T: ToTokens> ToTokens for CopyWrapper<'_, T> {
     fn to_tokens(&self, tokens: &mut proc_macro2::TokenStream) {
         self.0.to_tokens(tokens)
     }

tests/basics.rs

@@ -405,7 +405,7 @@ mod generics {
         option: Option<u8>,
     }
 
-    fn const_generics_example<'a>() -> WithConstGeneric<3> {
+    fn const_generics_example() -> WithConstGeneric<3> {
         WithConstGeneric {
             data: ByteArray::new([1, 2, 3]),
             option: None,