Avoid self deprecation about listTableColumn (doctrine#6108)

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|      Q       |   A
|------------- | -----------
| Type         | bug
| Fixed issues | 

#### Summary

BC solution for doctrine#6104

Closes doctrine#6104

src/Schema/AbstractSchemaManager.php

@@ -215,7 +215,7 @@ public function listTableColumns($table, $database = null)
         if ($database === null) {
             $database = $this->getDatabase(__METHOD__);
         } else {
-            Deprecation::trigger(
+            Deprecation::triggerIfCalledFromOutside(
                 'doctrine/dbal',
                 'https://github.com/doctrine/dbal/issues/5284',
                 'Passing $database to AbstractSchemaManager::listTableColumns() is deprecated.',