Action Form only displays error messages for responses with status 422

[258034-DuongVietHoang]

• Laravel Version: 11.44.1
• Nova Version: 4.35.7
• PHP Version: 8.2.28

Description:

The Action Form in Nova only displays error messages for responses with status 422.
However, when a user uploads a file that exceeds the maximum upload limit, the server throws a ValidatePostSize exception with status 413, but no error message is displayed to the user.

Detailed steps to reproduce the issue on a fresh Nova installation:

1. Create a File field inside a Nova Action.
2. Attempt to upload a file that exceeds the allowed upload size limit, triggering the ValidatePostSize error (HTTP 413).

Expect:
The error message should be displayed to inform the user that the file size exceeds the limit.

Current:
No error message is shown in the UI, leaving the user unaware of the issue.

[github-actions]

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