.. ranges no longer compile

Ranges must use the `...` syntax as of [rust PR #17584](rust-lang/rust#17584)

Author: drbawb

src/lib.rs

@@ -381,7 +381,7 @@ impl Uuid {
         // Make sure all chars are either hex digits or hyphen
         for (i, c) in us.chars().enumerate() {
             match c {
-                '0'..'9' | 'A'..'F' | 'a'..'f' | '-' => {},
+                '0'...'9' | 'A'...'F' | 'a'...'f' | '-' => {},
                 _ => return Err(ErrorInvalidCharacter(c, i)),
             }
         }