[server/google_api] Update deps and docs

server/google_apis/README.md

@@ -3,12 +3,14 @@ A Dart HTTP service meant to be deployed to
 [Cloud Firestore](https://firebase.google.com/products/firestore) features in
 [package:googleapis](https://pub.dev/packages/googleapis).
 
-- Increments a counter stored in Cloud Firestore via a transaction.
+- Increments a counter stored in Cloud Firestore via an atomic increment.
 - Based on [package:shelf](https://pub.dev/packages/shelf).
-- Includes a number of useful APIs in `lib/helpers.dart` which can be copied and
-  used in other projects.
 - Follow instructions at
   https://cloud.google.com/run/docs/quickstarts/build-and-deploy to build and
   deploy on [Cloud Run](https://cloud.google.com/run).
 - To deploy this demo, you will also need to enable the
-  [Cloud Firestore API](https://console.cloud.google.com/apis/api/firestore.googleapis.com).
+  [Cloud Firestore API](https://console.cloud.google.com/apis/api/firestore.googleapis.com):
+
+  ```sh
+  gcloud services enable firestore.googleapis.com
+  ```

server/google_apis/pubspec.yaml

@@ -5,11 +5,11 @@ environment:
   sdk: ^3.10.0
 
 dependencies:
-  google_cloud: ^0.2.0
-  googleapis: ^15.0.0
+  google_cloud: ^0.3.0
+  googleapis: ^16.0.0
   googleapis_auth: ^2.0.0
-  shelf: ^1.4.2
-  shelf_router: ^1.1.4
+  shelf: ^1.4.0
+  shelf_router: ^1.0.0
 
 dev_dependencies:
   lints: ^6.0.0