chore: Make clippy happy

Author: epage

crates/anstyle/src/color.rs

@@ -656,7 +656,7 @@ mod test {
 
     #[test]
     fn print_size_of() {
-        use std::mem::size_of;
+        use core::mem::size_of;
         dbg!(size_of::<Color>());
         dbg!(size_of::<AnsiColor>());
         dbg!(size_of::<Ansi256Color>());

crates/anstyle/src/effect.rs

@@ -385,7 +385,7 @@ mod test {
 
     #[test]
     fn print_size_of() {
-        use std::mem::size_of;
+        use core::mem::size_of;
         dbg!(size_of::<Effects>());
         dbg!(size_of::<EffectsDisplay>());
     }

crates/anstyle/src/reset.rs

@@ -28,7 +28,7 @@ mod test {
 
     #[test]
     fn print_size_of() {
-        use std::mem::size_of;
+        use core::mem::size_of;
         dbg!(size_of::<Reset>());
     }
 

crates/anstyle/src/style.rs

@@ -431,7 +431,7 @@ impl core::fmt::Display for StyleDisplay {
 #[test]
 #[cfg(feature = "std")]
 fn print_size_of() {
-    use std::mem::size_of;
+    use core::mem::size_of;
     dbg!(size_of::<Style>());
     dbg!(size_of::<StyleDisplay>());
 }