1.5.0

What's Changed

Add specs and linter documentation by @hlascelles in https://github.com/rails/thor/pull/907
Add tree command by @hlascelles in https://github.com/rails/thor/pull/906
feat: support insert_into_file erroring if the file is not changed, and add insert_into_file by @G-Rath in https://github.com/rails/thor/pull/908
support THOR_MERGE values with arguments by @rafaelfranca in https://github.com/rails/thor/pull/910
Hidden commands should not make an invocation ambiguous by @deivid-rodriguez in https://github.com/rails/thor/pull/911
Set frozen_string_literal: true in colors.rb by @tenderlove in https://github.com/rails/thor/pull/913
fix encoding error when running a merge tool by @moritzschepp in https://github.com/rails/thor/pull/916

@tenderlove made their first contribution in https://github.com/rails/thor/pull/913
@dependabot[bot] made their first contribution in https://github.com/rails/thor/pull/912
@moritzschepp made their first contribution in https://github.com/rails/thor/pull/916

Full Changelog: https://github.com/rails/thor/compare/v1.4.0...v1.5.0