[Gemspec] Bump Xcodeproj to ~> 0.24.0

Gemfile.lock

@@ -24,10 +24,10 @@ GIT
 
 GIT
   remote: https://github.com/CocoaPods/Xcodeproj.git
-  revision: cf1e67a3b6f5f24c1084bc25ecf47cc16bb87dd4
+  revision: ba8b0cb95919550f93f268c6ba7f377a435f26bc
   branch: master
   specs:
-    xcodeproj (0.23.1)
+    xcodeproj (0.24.0)
       activesupport (>= 3)
       colored (~> 1.2)
 
@@ -78,7 +78,7 @@ PATH
       molinillo (~> 0.2.3)
       nap (~> 0.8)
       open4 (~> 1.3)
-      xcodeproj (~> 0.23.1)
+      xcodeproj (~> 0.24.0)
 
 GEM
   remote: https://rubygems.org/

cocoapods.gemspec

@@ -29,7 +29,7 @@ Gem::Specification.new do |s|
   # Link with the version of CocoaPods-Core
   s.add_runtime_dependency 'cocoapods-core',       "= #{Pod::VERSION}"
   s.add_runtime_dependency 'claide',               '~> 0.8.1'
-  s.add_runtime_dependency 'xcodeproj',            '~> 0.23.1'
+  s.add_runtime_dependency 'xcodeproj',            '~> 0.24.0'
   s.add_runtime_dependency 'cocoapods-downloader', '~> 0.9.0'
   s.add_runtime_dependency 'cocoapods-plugins',    '~> 0.4.2'
   s.add_runtime_dependency 'cocoapods-try',        '~> 0.4.3'