Fix Pure attribute on get_object_vars() and get_resource_type()

Neither of these functions depend on any external state.

Author: cs278

Core/Core.php

@@ -604,7 +604,7 @@ function get_class_vars(string $class): array {}
  * for the specified <i>object</i> in scope. If a property have
  * not been assigned a value, it will be returned with a null value.
  */
-#[Pure(true)]
+#[Pure]
 function get_object_vars(object $object): array {}
 
 /**
@@ -821,7 +821,7 @@ function create_function(string $args, string $code): false|string {}
  * by this function, the return value will be the string
  * Unknown.
  */
-#[Pure(true)]
+#[Pure]
 function get_resource_type($resource): string {}
 
 /**