[FEATURE] Upgrade file_picker to 10.2.0

[soufianebenyaala]

Is your feature request related to a problem? Please describe.
Yes, currently the html-editor-enhanced package depends on an older version of file_picker, which causes compatibility issues with other dependencies that require file_picker version ^10.2.0.
For example, I am unable to upgrade other libraries that depend on the latest file_picker because of version constraints.

Describe the solution you'd like
Please upgrade the file_picker dependency to version ^10.2.0 (or allow a wider range using ^10.2.0 || ^9.0.0) to ensure compatibility with the latest ecosystem updates and avoid dependency conflicts.

Additional context

• This change will help projects using html-editor-enhanced stay up to date with the latest features and bug fixes from file_picker.
• Current pubspec constraint of file_picker (if any) limits flexibility in Flutter dependency resolution.

[blue492]

Thanks, How to get your pull request in Flutter pubspec.yaml?

[soufianebenyaala]

7798d8a