Update tests

[apdavison]

The current test suite:

• doesn't run unless you're running a local instance of the Seafile server
• contain test data with unknown contents

This PR:

• adapts the tests to run against drive-int.ebrains.eu
• uses plain text test data

Note that you need to set your EBRAINS username and a valid bearer token as environment variables to run the tests.

On my machine, one test fails, the other 27 pass. The error is:

FAILED tests/test_files.py::test_upload_file[/\u6d4b\u8bd5\u76ee\u5f55\u4e00-dzppmrwvwoso] - ebrains_drive.exceptions.ClientHttpError: ClientHttpError[403: Expected 200, but get 403]

Help debugging this is welcome.

I'd like to run these tests automatically with Gitlab CI, the problem is getting the bearer token - if someone knows how to do this, please let me know!

(We also need tests for the Bucket client).

[Cracky5457]

Hello andrew, I can't merge that there is conflict. Sorry for the late answer.