[google_sign_in] Endorses next web package. (#7191)

Bump major version to 6.0.0.

packages/google_sign_in/google_sign_in/CHANGELOG.md

diff --git a/packages/google_sign_in/google_sign_in/CHANGELOG.md b/packages/google_sign_in/google_sign_in/CHANGELOG.md
index 8888253..f6b1e57 100644
--- a/packages/google_sign_in/google_sign_in/CHANGELOG.md
+++ b/packages/google_sign_in/google_sign_in/CHANGELOG.md
@@ -1,3 +1,15 @@
+## 6.0.0
+
+* **Breaking change** for platform `web`:
+  * Endorses `google_sign_in_web: ^0.11.0` as the web implementation of the plugin.
+    * The web package is now backed by the **Google Identity Services (GIS) SDK**,
+    instead of the **Google Sign-In for Web JS SDK**, which is set to be deprecated
+    after March 31, 2023.
+    * Migration information can be found in the
+      [`google_sign_in_web` package README](https://pub.dev/packages/google_sign_in_web).
+
+For every platform other than `web`, this version should be identical to `5.4.4`.
+
 ## 5.4.4
 
 * Adds documentation for iOS auth with SERVER_CLIENT_ID

packages/google_sign_in/google_sign_in/pubspec.yaml

diff --git a/packages/google_sign_in/google_sign_in/pubspec.yaml b/packages/google_sign_in/google_sign_in/pubspec.yaml
index 0567002..ec61a31 100644
--- a/packages/google_sign_in/google_sign_in/pubspec.yaml
+++ b/packages/google_sign_in/google_sign_in/pubspec.yaml
@@ -3,7 +3,7 @@
   for signing in with a Google account on Android and iOS.
 repository: https://github.com/flutter/plugins/tree/main/packages/google_sign_in/google_sign_in
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+google_sign_in%22
-version: 5.4.4
+version: 6.0.0
 
 environment:
   sdk: ">=2.14.0 <3.0.0"
@@ -25,7 +25,7 @@
   google_sign_in_android: ^6.1.0
   google_sign_in_ios: ^5.5.0
   google_sign_in_platform_interface: ^2.2.0
-  google_sign_in_web: ^0.10.0
+  google_sign_in_web: ^0.11.0
 
 dev_dependencies:
   build_runner: ^2.1.10