fix: tidy up old requirements file

- issue #1 and PR #2 attempted to pin all versions for stability
  adding this note to explain the completed solution

  a) for some reason either specifying a patch version (3.10.0), or
  quoting the version ("3.10") gets the spaces build correct. The latter
  gives us 3.10.16 (today) and will get updated with new patches.

  b) even if the application `app_file` is not in the HF repo root, the
  requirements file must be in root for the builder to pick it up. There
  is no metadata option mentioned in the docs
  https://huggingface.co/docs/hub/spaces-config-reference