* Add reply with null-safety as dev dependency

Fork of reply dependency with null safety added to third_party folder

This fix allows tests to run in sound null-safety mode

* Took care of null-safe errors

* Fixed Cast error.

All tests are now passing.

Co-authored-by: Brian Robles <brianrobles204@gmail.com>
Co-authored-by: Ben Konyi <bkonyi@google.com>

• Commit 1b01afa
• Branch master

Mohsin Sheikh authored GitHub committed