refactor(bearer_authentication): lint warnings on auth examples (#785)

Author: renancaraujo

.github/workflows/examples_basic_authentication.yaml

@@ -31,10 +31,10 @@ jobs:
       report_on: "routes"
 
   docker:
+    if: false
     uses: ./.github/workflows/.docker_tests.yaml
     with:
       # TODO(erickzanardo): temporarirly disabled while dart_frog_auth is
       # no published yet.
-      if: false
       setup: rm pubspec_overrides.yaml && dart pub global activate --source path ../../packages/dart_frog_cli
       working_directory: examples/basic_authentication

.github/workflows/examples_bearer_authentication.yaml

@@ -31,10 +31,10 @@ jobs:
       report_on: "routes"
 
   docker:
+    if: false
     uses: ./.github/workflows/.docker_tests.yaml
     with:
       # TODO(erickzanardo): temporarirly disabled while dart_frog_auth is
       # no published yet.
-      if: false
       setup: rm pubspec_overrides.yaml && dart pub global activate --source path ../../packages/dart_frog_cli
       working_directory: examples/bearer_authentication

examples/bearer_authentication/routes/auth/_middleware.dart

@@ -4,7 +4,7 @@ import 'package:dart_frog/dart_frog.dart';
 
 Handler middleware(Handler handler) {
   final userRepository = UserRepository();
-  final sessionRepository = SessionRepository();
+  const sessionRepository = SessionRepository();
 
   return handler
       .use(requestLogger())

examples/bearer_authentication/routes/users/_middleware.dart

@@ -14,7 +14,7 @@ Future<User?> Function(String) userFromToken({
 
 Handler middleware(Handler handler) {
   final userRepository = UserRepository();
-  final sessionRepository = SessionRepository();
+  const sessionRepository = SessionRepository();
 
   return handler
       .use(requestLogger())