[google_maps_flutter] Bump platform interface version for NNBD stable (#3598)

Author: stuartmorgan-g

packages/google_maps_flutter/google_maps_flutter_platform_interface/CHANGELOG.md

@@ -1,8 +1,4 @@
-## 2.0.0-nullsafety.1
-
-* Fix overly-restrictive type check.
-
-## 2.0.0-nullsafety
+## 2.0.0
 
 * Migrated to null-safety.
 * BREAKING CHANGE: Removed deprecated APIs.

packages/google_maps_flutter/google_maps_flutter_platform_interface/pubspec.yaml

@@ -3,22 +3,22 @@ description: A common platform interface for the google_maps_flutter plugin.
 homepage: https://github.com/flutter/plugins/tree/master/packages/google_maps_flutter/google_maps_flutter_platform_interface
 # NOTE: We strongly prefer non-breaking changes, even at the expense of a
 # less-clean API. See https://flutter.dev/go/platform-interface-breaking-changes
-version: 2.0.0-nullsafety.1
+version: 2.0.0
 
 dependencies:
   flutter:
     sdk: flutter
-  meta: ^1.0.5
-  plugin_platform_interface: ^1.1.0-nullsafety.2
-  stream_transform: ^2.0.0-nullsafety.0
-  collection: ^1.14.13
+  meta: ^1.3.0
+  plugin_platform_interface: ">=1.0.0 <3.0.0"
+  stream_transform: ^2.0.0
+  collection: ^1.15.0
 
 dev_dependencies:
   flutter_test:
     sdk: flutter
   mockito: ^5.0.0-nullsafety.0
-  pedantic: ^1.8.0
+  pedantic: ^1.10.0
 
 environment:
-  sdk: '>=2.12.0-0 <3.0.0'
+  sdk: '>=2.12.0-259.9.beta <3.0.0'
   flutter: ">=1.9.1+hotfix.4"