easypost 4.13.0

• brakeman 5.4.1 ~> 5.2

• pry 0.16.0 ~> 0.14

• psych 4.0.6 ~> 4.0

• rake 13.3.1 ~> 13.0

• rdoc 6.17.0 ~> 6.4

• rspec 3.13.2 ~> 3.10

• rubocop 1.27.0 = 1.27

• rubocop-rspec 2.10.0 = 2.10

• simplecov 0.22.0 ~> 0.21

• simplecov-lcov 0.9.0 ~> 0.8

• vcr 6.0.0 = 6.0

• webmock 3.26.1 ~> 3.14