fix: second round of clippy lints

Clippy would not automatically apply these fixes, so they were applied
by hand.

to/src/ops.rs

@@ -8,7 +8,7 @@ use crate::{with_destination, To};
 /// # Panics
 ///
 /// This function will panic if the two slices have different lengths.
-pub fn copy_slice<'a, T>(origin: &'a [T]) -> impl To<[T], ()> + 'a
+pub fn copy_slice<T>(origin: &[T]) -> impl To<[T], ()> + '_
 where
     T: Copy,
 {
@@ -23,7 +23,7 @@ where
 /// # Panics
 ///
 /// This function will panic if destination is shorter than origin.
-pub fn copy_slice_least_src<'a, T>(origin: &'a [T]) -> impl To<[T], ()> + 'a
+pub fn copy_slice_least_src<T>(origin: &[T]) -> impl To<[T], ()> + '_
 where
     T: Copy,
 {
@@ -34,7 +34,7 @@ where
 /// destination.
 ///
 /// Copies as much data as is present in the shorter slice.
-pub fn copy_slice_least<'a, T>(origin: &'a [T]) -> impl To<[T], ()> + 'a
+pub fn copy_slice_least<T>(origin: &[T]) -> impl To<[T], ()> + '_
 where
     T: Copy,
 {
@@ -47,7 +47,7 @@ where
 /// Function with destination that attempts to copy data from origin into the destination.
 ///
 /// Will return None if the slices are of different lengths.
-pub fn try_copy_slice<'a, T>(origin: &'a [T]) -> impl To<[T], Option<()>> + 'a
+pub fn try_copy_slice<T>(origin: &[T]) -> impl To<[T], Option<()>> + '_
 where
     T: Copy,
 {
@@ -62,7 +62,7 @@ where
 /// Destination may be longer than origin.
 ///
 /// Will return None if the destination is shorter than origin.
-pub fn try_copy_slice_least_src<'a, T>(origin: &'a [T]) -> impl To<[T], Option<()>> + 'a
+pub fn try_copy_slice_least_src<T>(origin: &[T]) -> impl To<[T], Option<()>> + '_
 where
     T: Copy,
 {
@@ -72,7 +72,7 @@ where
 }
 
 /// Function with destination that copies all data between two array references.
-pub fn copy_array<'a, T, const N: usize>(origin: &'a [T; N]) -> impl To<[T; N], ()> + 'a
+pub fn copy_array<T, const N: usize>(origin: &[T; N]) -> impl To<[T; N], ()> + '_
 where
     T: Copy,
 {