Bump maximum version to include PHP 8.4

Author: bix0r

package.xml

@@ -439,7 +439,7 @@ Internals:
     <required>
       <php>
         <min>7.4.0</min>
-        <max>8.3.99</max>
+        <max>8.4.99</max>
       </php>
       <pearinstaller>
         <min>1.4.0</min>