[pdfviewer] Upgrade device_info_plus constraint to allow ^13.0.0

[MohamedGawdat]

Summary

syncfusion_flutter_pdfviewer 33.1.44 pins device_info_plus: ^12.1.0. This blocks downstream apps that depend on device_info_plus ^13.0.0 from using pdfviewer without forking — flutter pub get fails with a version-solving error.

Why v13 should be allowed

The device_info_plus 13.0.0 release was a platform min-SDK bump; the Dart API surface used by pdfviewer is unchanged. lib/src/pdfviewer.dart only uses:

• DeviceInfoPlugin()
• .androidInfo, .webBrowserInfo
• AndroidDeviceInfo.version.sdkInt
• AndroidDeviceInfo.systemFeatures
• WebBrowserInfo.maxTouchPoints

None of these were touched in v13. The only removal in v13 (IosDeviceInfo.utsname) is not used here.

Proposed change

In packages/syncfusion_flutter_pdfviewer/pubspec.yaml:

device_info_plus: '>=12.1.0 <14.0.0'

Happy to open a PR if this is acceptable.

[AbinayaSF4962]

Hi @MohamedGawdat ,

We are currently exploring the possibility of updating the device_info_plus package to the latest version in the syncfusion_flutter_pdfviewer package. To proceed, we need to ensure compliance with our licensing requirements and conduct thorough testing of the syncfusion_flutter_pdfviewer package with the new version (13.0.0).
In the meantime, we kindly request that you use version 12.1.0 of the device_info_plus package when working with the syncfusion_flutter_pdfviewer package.

Regards,
Abinaya E