Apply Standard formatting

[smaboshe]

This commit resolves the following Standard warning:

Lint/ConstantDefinitionInBlock: Do not define constants this way within a block

Ref:

• https://www.rubydoc.info/gems/rubocop/RuboCop/Cop/Lint/ConstantDefinitionInBlock
• https://stackoverflow.com/questions/3409931/why-can-you-not-declare-constants-in-methods-with-ruby