utopia 2.21.0

• concurrent-ruby 1.3.1 ~> 1.0

• console 1.25.2 ~> 1.0

• http-accept 2.2.1 ~> 2.1

• mail 2.8.1 ~> 2.6

• mime-types 3.5.2 ~> 3.0

• msgpack 1.7.2 >= 0

• net-smtp 0.5.0 >= 0

• rack 3.0.11 ~> 3.0

• samovar 2.3.0 ~> 2.1

• traces 0.11.1 >= 0

• trenni 3.14.0 ~> 3.0

• variant 0.1.1 ~> 0.1