Update Podspec

Author: mattprowse

ReactiveTask.podspec

@@ -16,11 +16,11 @@ Pod::Spec.new do |s|
   s.source       = { :git => "https://github.com/Carthage/ReactiveTask.git", :tag => "#{s.version}" }
   # Directory glob for all Swift files
   s.source_files  = "Sources/*.{swift}"
-  s.dependency 'Result', '~> 4.0'
-  s.dependency 'ReactiveSwift', '~> 4.0'
+  s.dependency 'Result', '~> 4.1'
+  s.dependency 'ReactiveSwift', '~> 5.0'
 
   s.pod_target_xcconfig = {"OTHER_SWIFT_FLAGS[config=Release]" => "$(inherited) -suppress-warnings" }
 
   s.cocoapods_version = ">= 1.4.0"
-  s.swift_version = "4.1.2"
-end
+  s.swift_version = "4.2"
+end