Update requirements

[suutari-ai]

Regenerate all requirements*.txt files to get the latest (compatible) package versions.

Also update the passari-workflow submodule so that its tests won't fail with the new pytest-asyncio version.

[suutari-ai]

I wonder why this one test (TestMuseumPackageDownload.test_downloads_cached) seems to fail occasionally. It also failed on last PR and then rerun of the CI job fixed it.

This is the error in the log:

        # Every request should have been made once
        for url in REQUEST_URLS:
>           assert mock_museumplus.request_counters[url] == 1
E           assert 0 == 1

[suutari-ai]

Hmm.. now it failed on passari-workflow's test_sync_attachments with the following output:

        if self._local._loop is None:
>           raise RuntimeError('There is no current event loop in thread %r.'
                               % threading.current_thread().name)
E           RuntimeError: There is no current event loop in thread 'MainThread'.

[suutari-ai]

Hmm.. now it failed on passari-workflow's test_sync_attachments with the following output:

OK, it seems that this fixed it: andersinno/passari-workflow#14.

That fix is now also part if this PR via a submodule update.