[idea] Use PSR UploadedFileInterface instead of our own

Problem/Motivation

We should investigate whether we can use Psr\Http\Message\UploadedFileInterface for file upload methods, rather than \Drupal\file\Upload\UploadedFileInterface to abstract out the Symfony \Symfony\Component\HttpFoundation\File\UploadedFile and handle InputStream file uploads as well.

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes

Release notes snippet