[gemspec] Bump cocoapods-stats to `~> 0.5.3`

Gemfile.lock

@@ -49,10 +49,10 @@ GIT
 
 GIT
   remote: https://github.com/CocoaPods/cocoapods-stats.git
-  revision: 524102745303db529da8b6aa99633c5a7c60be6c
+  revision: ff4a97cfdf8fbe49c6dd33b595c8486749e631b9
   branch: master
   specs:
-    cocoapods-stats (0.5.2)
+    cocoapods-stats (0.5.3)
       nap (~> 0.8)
 
 GIT
@@ -80,7 +80,7 @@ PATH
       cocoapods-core (= 0.38.0.beta.1)
       cocoapods-downloader (~> 0.9.1)
       cocoapods-plugins (~> 0.4.2)
-      cocoapods-stats (~> 0.5.0)
+      cocoapods-stats (~> 0.5.3)
       cocoapods-trunk (~> 0.6.1)
       cocoapods-try (~> 0.4.5)
       colored (~> 1.2)

cocoapods.gemspec

@@ -32,7 +32,7 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency 'xcodeproj',            '~> 0.25.0'
   s.add_runtime_dependency 'cocoapods-downloader', '~> 0.9.1'
   s.add_runtime_dependency 'cocoapods-plugins',    '~> 0.4.2'
-  s.add_runtime_dependency 'cocoapods-stats',      '~> 0.5.0'
+  s.add_runtime_dependency 'cocoapods-stats',      '~> 0.5.3'
   s.add_runtime_dependency 'cocoapods-try',        '~> 0.4.5'
   s.add_runtime_dependency 'cocoapods-trunk',      '~> 0.6.1'
   s.add_runtime_dependency 'molinillo',            '~> 0.2.3'