global: make it compatible with v12

tests/conftest.py

@@ -18,8 +18,8 @@ import tempfile
 
 import pytest
 from flask import Flask
-from flask_babelex import Babel
 from invenio_db import InvenioDB, db
+from invenio_i18n import InvenioI18N
 from sqlalchemy_utils.functions import create_database, database_exists, drop_database
 
 from invenio_config_tugraz import InvenioConfigTugraz
@@ -49,7 +49,7 @@ def create_app(request):
         SQLALCHEMY_DATABASE_URI=DB,
         SQLALCHEMY_TRACK_MODIFICATIONS=False,
     )
-    Babel(app)
+    InvenioI18N(app)
     InvenioConfigTugraz(app)
     InvenioDB(app)