Re-enable tests on datasets ArrayND types
Once `datasets` is updated to 2.14.7 (which includes the vulnerability fix for pyarrow), we can re-enable the tests on ArrayND types, which were disabled as part of:
- #2089
  - See: https://github.com/huggingface/datasets-server/pull/2089/commits/d2987320870c140457bab6dded67ac64cb9de935

Fix #2092.

TODO: Merge first
- [x] #2118
Re-enable tests on datasets ArrayND types: Once `datasets` is updated to 2.14.7 (which includes the vulnerability fix for pyarrow), we can re-enable the tests on ArrayND types, which were disabled as part of:
- #2089
  - See: https://github.com/huggingface/datasets-server/pull/2089/commits/d2987320870c140457bab6dded67ac64cb9de935

Fix #2092.

TODO: Merge first
- [x] #2118