refactor(dart_frog_gen): upgrade to Dart 2.19 and Very Good Analysis 4.0.0 (#534)

Author: felangel

packages/dart_frog_gen/analysis_options.yaml

@@ -1 +1 @@
-include: package:very_good_analysis/analysis_options.3.1.0.yaml
+include: package:very_good_analysis/analysis_options.4.0.0.yaml

packages/dart_frog_gen/lib/src/build_route_configuration.dart

@@ -244,12 +244,12 @@ extension on FileSystemEntity {
 class RouteConfiguration {
   /// {@macro route_configuration}
   const RouteConfiguration({
-    this.globalMiddleware,
     required this.middleware,
     required this.directories,
     required this.routes,
     required this.endpoints,
     required this.rogueRoutes,
+    this.globalMiddleware,
     this.serveStaticFiles = false,
     this.invokeCustomEntrypoint = false,
   });

packages/dart_frog_gen/pubspec.yaml

@@ -7,12 +7,12 @@ issue_tracker: https://github.com/VeryGoodOpenSource/dart_frog/issues
 documentation: https://dartfrog.vgv.dev/docs/overview
 
 environment:
-  sdk: ">=2.18.0 <3.0.0"
+  sdk: ">=2.19.0 <3.0.0"
 
 dependencies:
   path: ^1.8.1
 
 dev_dependencies:
   mocktail: ^0.3.0
   test: ^1.19.2
-  very_good_analysis: ^3.1.0
+  very_good_analysis: ^4.0.0