Allows 3.0 version of IEF module in preparation for D11.

composer.json

@@ -40,7 +40,7 @@
     "drupal/focal_point": "^2.0",
     "drupal/flag": "^4.0",
     "drupal/fullcalendar_block": "^1.0",
-    "drupal/inline_entity_form": "^1.0",
+    "drupal/inline_entity_form": "^3.0",
     "drupal/jsonapi_views": "^1.0",
     "drupal/office_hours": "^1.2",
     "drupal/paragraphs": "^1.5",