ignore deprecated members in tests

Author: dshukertjr

packages/supabase/test/mock_test.dart

@@ -1,3 +1,5 @@
+// ignore_for_file: deprecated_member_use_from_same_package
+
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';

packages/supabase/test/utilities_test.dart

@@ -1,3 +1,5 @@
+// ignore_for_file: deprecated_member_use_from_same_package
+
 import 'dart:io';
 
 import 'package:http/http.dart' as http;