'EntryPoints' object has no attribute 'get'

[mschrimpf]

importlib-metadata seems to have deprecated and now removed the get method: https://stackoverflow.com/a/73932581/2225200

This breaks all brainio functionality:
E AttributeError: 'EntryPoints' object has no attribute 'get' (e.g. https://app.travis-ci.com/github/brain-score/brain-score/jobs/585222699)

[mschrimpf]

Temporarily addressing this for brain-score in brain-score/vision@a5056ec

[jjpr-mit]

We can exclude importlib-metadata 5.0.0, but I don't get why brainio tests pass and brain-score tests fail. For some reason brain-score gets 5.0.0 but brainio doesn't.