trusona 2.4.0

• activesupport 5.2.8.1 ~> 5.2

• bump 0.10.0 ~> 0.5

• dotenv 2.8.1 ~> 2.2

• guard 2.18.1 ~> 2.14

• guard-rspec 4.7.3 ~> 4.7

• guard-rubocop 1.5.0 ~> 1.3

• guard-yard 2.2.1 ~> 2.2

• rake 10.5.0 ~> 10.0

• rspec 3.13.0 ~> 3.0

• rspec-wait 0.0.10 ~> 0.0

• rubocop 0.93.1 ~> 0.49

• simplecov 0.22.0 ~> 0.14

• webmock 3.23.1 ~> 3.5

• yard 0.9.36 ~> 0.9