Update dependency file_picker to v13

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
file_picker (source)	dependencies	major	^12.0.0-beta.2 → ^13.0.0

---

Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

---

Release Notes

vicajilau/flutter_file_picker (file_picker)

v13.1.0

Compare Source

• Added support for UIScene on iOS.

v13.0.0

Compare Source

General

• BREAKING CHANGE: PlatformFile.length() now returns Future<int?> instead of Future<int>, matching lengthSync(). null means the length could not be determined (e.g. a failed disk read), distinct from a genuinely empty file, which still returns 0. Previously both cases returned 0, with no way to tell them apart. #​2197
• BREAKING CHANGE: Removed the parameters deprecated since the 12.0.0 federated rewrite: allowMultiple and withData/withReadStream/readSequential on pickFiles(), lockParentWindow on pickFiles()/pickFile()/getDirectoryPath()/saveFile(), cancelUploadOnWindowBlur on pickFiles()/pickFile(), and androidSafOptions on pickFiles()/pickFile()/getDirectoryPath(). Use pickFile() for single-file selection, PlatformFile.readAsBytes()/readAsByteStream() to read file data, WindowsOptions.lockParentWindow/LinuxOptions.lockParentWindow, WebOptions.cancelUploadOnWindowBlur, and androidOptions respectively. #​2202
• Raised lower bounds of all platform implementation packages: file_picker_platform_interface ^4.0.0, android_file_picker ^2.0.0, file_picker_darwin ^2.0.0, file_picker_linux ^2.0.0, windows_file_picker ^2.0.0, and file_picker_web ^4.0.0.

Web

• Fixed FilePickerWebOptions.readSequential having no effect (file_picker_web 4.0.0). #​2206

Android & iOS

• Removed the dead native code paths behind withData (android_file_picker 2.0.0, file_picker_darwin 2.0.0). #​2202

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.