build: (deps): bump go_router from 15.1.2 to 16.0.0

Bumps [go_router](https://github.com/flutter/packages/tree/main/packages) from 15.1.2 to 16.0.0.
- [Release notes](https://github.com/flutter/packages/releases)
- [Commits](https://github.com/flutter/packages/commits/go_router-v16.0.0/packages)

---
updated-dependencies:
- dependency-name: go_router
  dependency-version: 16.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

pubspec.yaml

@@ -47,7 +47,7 @@ dependencies:
   flutter_web_auth_2: ^3.1.1 # Version 4 blocked by https://github.com/MixinNetwork/flutter-plugins/issues/379
   flutter_webrtc: ^0.12.9
   geolocator: ^13.0.1
-  go_router: ^15.1.2
+  go_router: ^16.0.0
   handy_window: ^0.4.0
   html: ^0.15.4
   http: ^1.2.0