update changelog and version

Author: vashworth

packages/google_sign_in/google_sign_in_ios/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 5.6.5
+
+* Upgrades GoogleSignIn iOS SDK to 7.0.
+
 ## 5.6.4
 
 * Converts platform communication to Pigeon.

packages/google_sign_in/google_sign_in_ios/pubspec.yaml

@@ -2,7 +2,7 @@ name: google_sign_in_ios
 description: iOS implementation of the google_sign_in plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/google_sign_in/google_sign_in_ios
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+google_sign_in%22
-version: 5.6.4
+version: 5.6.5
 
 environment:
   sdk: ">=2.19.0 <4.0.0"