Add more meta-characters for some MS platforms

The docs only talk about 2008 and up, not sure if those should be added
to 2005 too.

lib/Doctrine/DBAL/Platforms/SQLServer2008Platform.php

@@ -116,4 +116,9 @@ class SQLServer2008Platform extends SQLServer2005Platform
     {
         return Keywords\SQLServer2008Keywords::class;
     }
+
+    protected function getLikeWildcardCharacters() : iterable
+    {
+        return array_merge(parent::getLikeWildcardCharacters(), ['[', ']', '^']);
+    }
 }