Bump GSI version to 6.2.3 (#199)

GoogleSignIn.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'GoogleSignIn'
-  s.version          = '6.2.2'
+  s.version          = '6.2.3'
   s.summary          = 'Enables iOS apps to sign in with Google.'
   s.description      = <<-DESC
 The Google Sign-In SDK allows users to sign in with their Google account from third-party apps.

GoogleSignInSwiftSupport.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name = 'GoogleSignInSwiftSupport'
-  s.version = '6.2.2'
+  s.version = '6.2.3'
   s.swift_version = '4.0'
   s.summary = 'Adds Swift-focused support for Google Sign-In.'
   s.description = 'Additional Swift support for the Google Sign-In SDK.'

Package.swift

@@ -17,7 +17,7 @@
 
 import PackageDescription
 
-let googleSignInVersion = "6.2.2"
+let googleSignInVersion = "6.2.3"
 
 let package = Package(
   name: "GoogleSignIn",