chore(deps): bump flutter_lints from 3.0.2 to 4.0.0 in /frontend

Bumps [flutter_lints](https://github.com/flutter/packages/tree/main/packages) from 3.0.2 to 4.0.0.
- [Release notes](https://github.com/flutter/packages/releases)
- [Commits](https://github.com/flutter/packages/commits/flutter_lints-v4.0.0/packages)

---
updated-dependencies:
- dependency-name: flutter_lints
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

frontend/pubspec.lock

@@ -370,10 +370,10 @@ packages:
     dependency: "direct dev"
     description:
       name: flutter_lints
-      sha256: "9e8c3858111da373efc5aa341de011d9bd23e2c5c5e0c62bccf32438e192d7b1"
+      sha256: "3f41d009ba7172d5ff9be5f6e6e6abb4300e263aab8866d2a0842ed2a70f8f0c"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.2"
+    version: "4.0.0"
   flutter_localizations:
     dependency: "direct main"
     description: flutter
@@ -617,10 +617,10 @@ packages:
     dependency: transitive
     description:
       name: lints
-      sha256: cbf8d4b858bb0134ef3ef87841abdf8d63bfc255c266b7bf6b39daa1085c4290
+      sha256: "976c774dd944a42e83e2467f4cc670daef7eed6295b10b36ae8c85bcbf828235"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.0"
+    version: "4.0.0"
   logging:
     dependency: transitive
     description:

frontend/pubspec.yaml

@@ -73,7 +73,7 @@ dev_dependencies:
   test: ^1.24.9
   mockito: ^5.4.4
   build_runner: ^2.4.9
-  flutter_lints: ^3.0.2
+  flutter_lints: ^4.0.0
 
 flutter_launcher_icons:
   android: "launcher_icon"