Fix: missing try catch on aleph file upload

[1yam]

Self proofreading checklist

• The new code clear, easy to read and well commented.
• New code does not duplicate the functions of builtin or popular libraries.
• An LLM was used to review the new code and look for simplifications.
• New classes and functions contain docstrings explaining what they provide.
• All new code is covered by relevant tests.

Changes

This pull request introduces error handling for the upload function in src/aleph_client/commands/files.py to provide more informative feedback when file uploads fail. It also includes a minor import statement update.

Error handling improvements:

• Added a try-except block in the upload function to catch ClientResponseError exceptions during file uploads. This ensures that specific error messages are displayed to the user, such as notifying them when a file is too large to upload (status: 413) or providing a generic error message for other cases. [1] [2]

Import updates:

• Imported ClientResponseError from aiohttp to support the new error handling in the upload function.

How to test

aleph file upload with file > than 100 MiB or with a wallet without balancec