Fixed stripColor taking more than it should, thanks to fieldmaster for catching it

By: Nathan Adams <dinnerbone@dinnerbone.com>

paper-api/src/main/java/org/bukkit/ChatColor.java

@@ -115,7 +115,7 @@ public enum ChatColor {
             return null;
         }
 
-        return input.replaceAll("(?i)\u00A7[0-F]", "");
+        return input.replaceAll("(?i)\u00A7[0-9A-F]", "");
     }
 
     static {