Updating to point to the config. (dart-lang/pubspec_parse#96)

diff --git a/pkgs/pubspec_parse/.github/autosubmit.yml b/pkgs/pubspec_parse/.github/autosubmit.yml
new file mode 100644
index 0000000..a9daaa9
--- /dev/null
+++ b/pkgs/pubspec_parse/.github/autosubmit.yml
@@ -0,0 +1,6 @@
+# Copyright 2023 The Flutter Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# This file will be added to flutter's internal repository.
+config_path: 'autosubmit/dart-lang/autosubmit.yml'