chore: fix lints in examples (#422)

Author: kevmoo

examples/fullstack/frontend/pubspec.yaml

@@ -16,6 +16,7 @@ dependencies:
 
 dev_dependencies:
   build_runner: ^2.0.0
+  dart_flutter_team_lints: ^1.0.0
   flutter_test:
     sdk: flutter
   json_serializable: ^6.0.0

examples/hello/pubspec.yaml

@@ -13,6 +13,7 @@ dependencies:
 
 dev_dependencies:
   build_runner: ^2.0.0
+  dart_flutter_team_lints: ^1.0.0
   functions_framework_builder: ^0.4.0
   http: '>=0.13.0 <2.0.0'
   test: ^1.15.7

examples/json/pubspec.yaml

@@ -14,6 +14,7 @@ dependencies:
 
 dev_dependencies:
   build_runner: ^2.0.0
+  dart_flutter_team_lints: ^1.0.0
   functions_framework_builder: ^0.4.0
   http: '>=0.13.0 <2.0.0'
   json_serializable: ^6.0.0

examples/protobuf_firestore/pubspec.yaml

@@ -6,11 +6,12 @@ environment:
 
 dependencies:
   functions_framework: ^0.4.3
-  shelf: ^1.0.0
   protobuf: ^3.0.0
+  shelf: ^1.0.0
 
 dev_dependencies:
   build_runner: ^2.0.0
+  dart_flutter_team_lints: ^1.0.0
   functions_framework_builder: ^0.4.0
   http: '>=0.13.0 <2.0.0'
   test: ^1.15.0

examples/protobuf_firestore/test/function_test.dart

@@ -13,6 +13,8 @@
 // limitations under the License.
 
 @Timeout(Duration(seconds: 3))
+library;
+
 import 'dart:convert';
 
 import 'package:http/http.dart';

examples/protobuf_firestore/test/test_shared.dart

@@ -10,25 +10,25 @@ final protobytes = base64Decode(
 );
 
 const jsonOutput = {
-  "value": {
-    "name":
-        "projects/dart-redirector/databases/(default)/documents/users/ghXNtePIFmdDOBH3iEMH",
-    "fields": {
-      "name": {"stringValue": "lucia4"},
+  'value': {
+    'name':
+        'projects/dart-redirector/databases/(default)/documents/users/ghXNtePIFmdDOBH3iEMH',
+    'fields': {
+      'name': {'stringValue': 'lucia4'},
     },
-    "createTime": "2023-06-16T00:48:43.625845Z",
-    "updateTime": "2023-06-21T12:21:25.413855Z",
+    'createTime': '2023-06-16T00:48:43.625845Z',
+    'updateTime': '2023-06-21T12:21:25.413855Z',
   },
-  "oldValue": {
-    "name":
-        "projects/dart-redirector/databases/(default)/documents/users/ghXNtePIFmdDOBH3iEMH",
-    "fields": {
-      "name": {"stringValue": "lucia3"},
+  'oldValue': {
+    'name':
+        'projects/dart-redirector/databases/(default)/documents/users/ghXNtePIFmdDOBH3iEMH',
+    'fields': {
+      'name': {'stringValue': 'lucia3'},
     },
-    "createTime": "2023-06-16T00:48:43.625845Z",
-    "updateTime": "2023-06-17T01:08:02.827231Z",
+    'createTime': '2023-06-16T00:48:43.625845Z',
+    'updateTime': '2023-06-17T01:08:02.827231Z',
   },
-  "updateMask": {
-    "fieldPaths": ["name"],
+  'updateMask': {
+    'fieldPaths': ['name'],
   },
 };

examples/raw_cloudevent/pubspec.yaml

@@ -10,6 +10,7 @@ dependencies:
 
 dev_dependencies:
   build_runner: ^2.0.0
+  dart_flutter_team_lints: ^1.0.0
   functions_framework_builder: ^0.4.0
   http: '>=0.13.0 <2.0.0'
   test: ^1.15.0

examples/raw_cloudevent/test/function_test.dart

@@ -13,6 +13,8 @@
 // limitations under the License.
 
 @Timeout(Duration(seconds: 3))
+library;
+
 import 'dart:convert';
 
 import 'package:http/http.dart';