Bump file from 6.1.4 to 7.0.0

Bumps [file](https://github.com/google/file.dart/tree/master/packages) from 6.1.4 to 7.0.0.
- [Release notes](https://github.com/google/file.dart/releases)
- [Commits](https://github.com/google/file.dart/commits/v7.0.0/packages)

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

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

pubspec.lock

@@ -317,10 +317,10 @@ packages:
     dependency: "direct dev"
     description:
       name: file
-      sha256: "1b92bec4fc2a72f59a8e15af5f52cd441e4a7860b49499d69dfa817af20e925d"
+      sha256: "5fc22d7c25582e38ad9a8515372cd9a93834027aacf1801cf01164dac0ffa08c"
       url: "https://pub.dev"
     source: hosted
-    version: "6.1.4"
+    version: "7.0.0"
   fixnum:
     dependency: transitive
     description:
@@ -716,10 +716,10 @@ packages:
     dependency: transitive
     description:
       name: shared_preferences_linux
-      sha256: c2eb5bf57a2fe9ad6988121609e47d3e07bb3bdca5b6f8444e4cf302428a128a
+      sha256: "9f2cbcf46d4270ea8be39fa156d86379077c8a5228d9dfdb1164ae0bb93f1faa"
       url: "https://pub.dev"
     source: hosted
-    version: "2.3.1"
+    version: "2.3.2"
   shared_preferences_platform_interface:
     dependency: transitive
     description:
@@ -740,10 +740,10 @@ packages:
     dependency: transitive
     description:
       name: shared_preferences_windows
-      sha256: f763a101313bd3be87edffe0560037500967de9c394a714cd598d945517f694f
+      sha256: "841ad54f3c8381c480d0c9b508b89a34036f512482c407e6df7a9c4aa2ef8f59"
       url: "https://pub.dev"
     source: hosted
-    version: "2.3.1"
+    version: "2.3.2"
   shelf:
     dependency: transitive
     description:

pubspec.yaml

@@ -40,7 +40,7 @@ dev_dependencies:
   build_runner: ^2.4.6
   change_app_package_name: ^1.1.0
   flutter_lints: ^2.0.3
-  file: ^6.0.0
+  file: ^7.0.0
 
 flutter:
   uses-material-design: true