GoogleUtilities 6.1.0 (#2999)

GoogleUtilities.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'GoogleUtilities'
-  s.version          = '6.0.0'
+  s.version          = '6.1.0'
   s.summary          = 'Google Utilities for iOS (plus community support for macOS and tvOS)'
 
   s.description      = <<-DESC

GoogleUtilities/CHANGELOG.md

@@ -1,4 +1,5 @@
-# Unreleased
+# 6.1.0
+- Added `GULAppDelegateSwizzler` macOS support. (#2911)
 
 # 6.0.0
 - GULAppDelegateSwizzler - proxy APNS methods separately. (#2835)