Refactor debug method in Utils class

The debug method in the Utils class has been refactored to only accept string messages. Additionally, a try-catch block has been added to output the message with strip_tags function in the event of a Throwable exception, improving error-handling.

src/Utils.php

@@ -72,10 +72,14 @@ public static function printList(null|array|bool|float|int|string $items, string
         return "[\"<{$color}>" . \implode("</{$color}>\", \"<{$color}>", $items) . "</{$color}>\"]";
     }
 
-    public static function debug(int|string $message): void
+    public static function debug(string $message): void
     {
         if (self::$debugMode) {
-            cli($message);
+            try {
+                cli($message);
+            } catch (\Throwable) {
+                Cli::out(\strip_tags($message));
+            }
         }
     }