derive Clone, Copy for AnyKind (launchbadge#1474)

Author: yuyawk

sqlx-core/src/any/kind.rs

@@ -1,7 +1,7 @@
 use crate::error::Error;
 use std::str::FromStr;
 
-#[derive(Debug)]
+#[derive(Debug, Clone, Copy)]
 pub enum AnyKind {
  #[cfg(feature = "postgres")]
  Postgres,