nextcloud: adapt unit test

packages/nextcloud/test/core.dart

@@ -1,4 +1,3 @@
-import 'package:built_collection/built_collection.dart';
 import 'package:nextcloud/nextcloud.dart';
 import 'package:test/test.dart';
 
@@ -68,10 +67,10 @@ Future run(final DockerImage image) async {
         search: '',
         itemType: 'call',
         itemId: 'new',
-        shareTypes: BuiltList([
+        shareTypes: [
           ShareType.user.code,
           ShareType.group.code,
-        ]),
+        ],
       );
       expect(response.ocs.data, hasLength(3));