Fix PHP version constraints

Author: derickr

package.xml

@@ -220,7 +220,7 @@ Mon, Oct 06, 2025 - Xdebug 3.5.0alpha1
   <required>
    <php>
     <min>8.0.0</min>
-    <max>8.4.99</max>
+    <max>8.5.99</max>
    </php>
    <pearinstaller>
     <min>1.9.1</min>