version bump v(4.40.0)

Summary: SDK version bump to v(4.40.0). Automatically generated by running fbobjc/ios-sdk/internal/scripts/cut_branch_ios.sh

Reviewed By: jingping2015

Differential Revision: D13681917

fbshipit-source-id: 254027f9d5c52272ab1b744bbba8ca835d0923a3

FBSDKShareKit.podspec

@@ -3,7 +3,7 @@
 Pod::Spec.new do |s|
 
   s.name         = 'FBSDKShareKit'
-  s.version      = '4.39.1'
+  s.version      = '4.40.0'
   s.summary      = 'Official Facebook SDK for iOS to access Facebook Platform Sharing Features'
 
   s.description  = <<-DESC
@@ -22,7 +22,7 @@ Pod::Spec.new do |s|
   s.tvos.deployment_target = '9.0'
 
   s.source       = { :git => 'https://github.com/facebook/facebook-objc-sdk.git',
-                     :tag => 'v4.39.1'
+                     :tag => "v#{s.version}"
                     }
 
   s.ios.weak_frameworks = 'Accounts', 'AudioToolbox', 'CoreGraphics', 'CoreLocation', 'Foundation', 'QuartzCore', 'Security', 'Social', 'UIKit'