[go_router] Add missing await keyword to onTap callback in the code example in navigation.md (flutter#8343)

- Added the `async` keyword to the `onTap` callback in the code example in `navigation.md`.

Author: Michae1Weiss

packages/go_router/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 14.7.2
+
+- Add missing `await` keyword to `onTap` callback in `navigation.md`.
+
 ## 14.7.1
 
 - Fixes return type of current state getter on `GoRouter` and `GoRouterDelegate` to be non-nullable.

packages/go_router/doc/navigation.md

@@ -118,7 +118,7 @@ To try out the behavior yourself, see
 Waiting for a value to be returned:
 
 ```dart
-onTap: () {
+onTap: () async {
   final bool? result = await context.push<bool>('/page2');
   if(result ?? false)...
 }

packages/go_router/pubspec.yaml

@@ -1,7 +1,7 @@
 name: go_router
 description: A declarative router for Flutter based on Navigation 2 supporting
   deep linking, data-driven routes and more
-version: 14.7.1
+version: 14.7.2
 repository: https://github.com/flutter/packages/tree/main/packages/go_router
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+go_router%22