[Gemspec] Bump xcodeproj to `~> 0.20.2`

Gemfile.lock

@@ -24,10 +24,10 @@ GIT
 
 GIT
   remote: https://github.com/CocoaPods/Xcodeproj.git
-  revision: 9e228d30bb77ded13d7a65b952252afbd4b34911
+  revision: 8bf91f215cb996f36c4028c78b033d1ea6b6f1fc
   branch: master
   specs:
-    xcodeproj (0.20.1)
+    xcodeproj (0.20.2)
       activesupport (>= 3)
       colored (~> 1.2)
 
@@ -78,7 +78,7 @@ PATH
       molinillo (~> 0.1.1)
       nap (~> 0.8)
       open4 (~> 1.3)
-      xcodeproj (~> 0.20.1)
+      xcodeproj (~> 0.20.2)
 
 GEM
   remote: http://rubygems.org/
@@ -118,7 +118,7 @@ GEM
       rb-kqueue (>= 0.2)
     metaclass (0.0.4)
     method_source (0.8.2)
-    minitest (5.4.2)
+    minitest (5.4.3)
     mocha (1.1.0)
       metaclass (~> 0.0.1)
     mocha-on-bacon (0.2.2)

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',               '~> 0.7.0'
-  s.add_runtime_dependency 'xcodeproj',            '~> 0.20.1'
+  s.add_runtime_dependency 'xcodeproj',            '~> 0.20.2'
   s.add_runtime_dependency 'cocoapods-downloader', '~> 0.7.2'
   s.add_runtime_dependency 'cocoapods-plugins',    '~> 0.3.1'
   s.add_runtime_dependency 'cocoapods-try',        '~> 0.4.2'