[l10n] Fix l10n export (#17526)

Author: arminmeh

packages/x-data-grid/src/locales/index.ts

@@ -14,6 +14,7 @@ export * from './fiFI';
 export * from './frFR';
 export * from './heIL';
 export * from './huHU';
+export * from './hyAM';
 export * from './itIT';
 export * from './jaJP';
 export * from './koKR';