v0.28.1

What's Changed

• feat: make step run replays more intuitive by @abelanger5 in #507
• fix(grpc): InvalidArgument errors for badly formatted data by @abelanger5 in #508
• fix: throw proper error when function returns a non-JSON object by @abelanger5 in #509
• fix: typo in docs by @abelanger5 in #510
• chore(auto-merge): approve PR on auto merge by @steebchen in #512

Full Changelog: v0.28.0...v0.28.1