[TASK] Add updateNecessary for lanugage column

Without that column, the Wizard will fail to run, thus it is not necessary to run anymore if the field has been removed.

Classes/Updates/LanguageMigrationUpdate.php

@@ -92,6 +92,16 @@ class LanguageMigrationUpdate implements UpgradeWizardInterface {
 	 * @return bool
 	 */
 	public function updateNecessary(): bool {
+		try {
+			$connectionPool = GeneralUtility::makeInstance(ConnectionPool::class);
+			$queryBuilder = $connectionPool->getQueryBuilderForTable('tx_sgmail_domain_model_mail');
+			$queryBuilder->select('language')
+				->from('tx_sgmail_domain_model_mail')
+				->execute();
+		}
+		catch (\Exception $e){
+			return false;
+		}
 		return TRUE;
 	}