fix(deps): pin path_expander (<2.0) for Ruby 2.7 (endless method defs)

Author: JuanVqz

CHANGELOG.md

@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## main [(unreleased)](https://github.com/fastruby/skunk/compare/v0.5.4...HEAD)
 
+* BUGFIX: Pin path_expander < 2.0 for Ruby 2.7 compatibility
 * [FEATURE: Add `--formats` CLI flag to select report formats (json, html, console)](https://github.com/fastruby/skunk/pull/130)
 * [REFACTOR: Move Console Report](https://github.com/fastruby/skunk/pull/128)
 * [BUGFIX: Set the right content type in the share HTTP request](https://github.com/fastruby/skunk/pull/129)

skunk.gemspec

@@ -38,6 +38,7 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
+  spec.add_dependency "path_expander", "< 2.0"
   spec.add_dependency "rubycritic", ">= 4.5.2", "< 5.0"
   spec.add_dependency "terminal-table", "~> 3.0"