Tests can't be run on 3.13 Locally until deepdiff issue addressed

[markpbaggett]

When running tests locally on 3.13 (haven't checked 3.13), we get this error:

(venv) ➜  utils git:(main) python test_cookbook.py -v ../docs/recipes/0026-toc-opera.md
Traceback (most recent call last):
  File "/Users/mark.baggett/tmp/iiif-prezi3/utils/test_cookbook.py", line 9, in <module>
    from deepdiff import DeepDiff
  File "/Users/mark.baggett/tmp/iiif-prezi3/venv/lib/python3.13/site-packages/deepdiff/__init__.py", line 11, in <module>
    from .delta import Delta as Delta
  File "/Users/mark.baggett/tmp/iiif-prezi3/venv/lib/python3.13/site-packages/deepdiff/delta.py", line 8, in <module>
    from deepdiff import DeepDiff
ImportError: cannot import name 'DeepDiff' from partially initialized module 'deepdiff' (most likely due to a circular import) (/Users/mark.baggett/tmp/iiif-prezi3/venv/lib/python3.13/site-packages/deepdiff/__init__.py)

I haven't really looked hard at the problem, but for now, it's not a good idea to dev on Python 3.13.

[glenrobson]

It seems to work with 3.13 but need to test more: https://github.com/iiif-prezi/iiif-prezi3/actions/runs/15021964987/job/42213083612