utopia 2.28.0

• bake 0.23.1 ~> 0.20

• concurrent-ruby 1.3.5 ~> 1.2

• console 1.30.2 ~> 1.24

• http-accept 2.2.1 ~> 2.1

• mail 2.8.1 ~> 2.6

• mime-types 3.6.0 ~> 3.0

• msgpack 1.8.0 >= 0

• net-smtp 0.5.1 >= 0

• rack 3.1.12 ~> 3.0

• samovar 2.3.0 ~> 2.1

• traces 0.15.2 ~> 0.10

• variant 0.1.1 ~> 0.1

• xrb 0.11.1 ~> 0.4