rubytree 2.0.3

• bundler 2.5.22 ~> 2.3

• rake 13.2.1 ~> 13.0

• rdoc 6.7.0 ~> 6.0

• rspec 3.13.0 ~> 3.0, > 3.10

• rtagstask 0.0.4 ~> 0.0.4

• rubocop 1.68.0 ~> 1.0

• rubocop-rake 0.6.0 ~> 0.0

• rubocop-rspec 2.31.0 ~> 2.0

• simplecov 0.22.0 ~> 0.21

• simplecov-lcov 0.8.0 ~> 0.8

• test-unit 3.6.2 ~> 3.0

• yard 0.9.37 ~> 0.0, >= 0.9.20