Declare protect member, preventing PHP 8.2 warning

Author: thekid

src/main/php/inject/Injector.class.php

@@ -11,6 +11,7 @@
 class Injector {
   protected static $PROVIDER;
   protected $bindings= [];
+  protected $protect= [];
 
   static function __static() {
     self::$PROVIDER= Type::forName('inject.Provider<?>');