Add explicit dependency to xcodeproj

Author: iangmaia

Gemfile.lock

@@ -16,6 +16,7 @@ PATH
       progress_bar (~> 1.3)
       rake (>= 12.3, < 14.0)
       rake-compiler (~> 1.0)
+      xcodeproj (~> 1.22.0)
 
 GEM
   remote: https://rubygems.org/

fastlane-plugin-wpmreleasetoolkit.gemspec

@@ -36,6 +36,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency 'progress_bar', '~> 1.3'
   spec.add_dependency 'rake', '>= 12.3', '< 14.0'
   spec.add_dependency 'rake-compiler', '~> 1.0'
+  spec.add_dependency 'xcodeproj', '~> 1.22.0'
 
   # `google-cloud-storage` is required by fastlane, but we pin it in case it's not in the future
   spec.add_dependency 'google-cloud-storage', '~> 1.31'