Update import-metadata versioning

[BorisTheBrave]

Fixes some weird version pinning issues in google colab. I think it's got an old or custom version of poetry, it doesn't behave like local tooling.

When you installed circuitsvis, it would downgrade importlib-metadata, which forces a restart of the environment. Very irritating.

Before:

Collecting importlib-metadata<6.0.0,>=5.1.0 (from circuitsvis==0.0.0)
  Downloading importlib_metadata-5.2.0-py3-none-any.whl.metadata (5.0 kB)

After

Requirement already satisfied: importlib-metadata<999.0.0,>=5.1.0 in /usr/local/lib/python3.11/dist-packages (from circuitsvis==0.0.0) (8.6.1)

[BorisTheBrave]

I've also added some fixes to satisfy your automated checks, but there's a lot wrong with them, so I'm stopping at this point.