Replace outdated dependency with security flags

[shcheklein]

pytest-celery raises security scan alert (e.g. https://github.com/iterative/dvc-task/actions/runs/8883067284/job/24389104408?pr=128)

It depends on retry libm which itself depends (for no good reason) on py which is flagged for security and is outdated:

invl/retry#58
invl/retry#60

It seems it's not maintained (last release / update is ~8 years ago).

A replacement is funcy - lightweight (no dependencies AFAIK), license is good, maintained. We have been using it in DVC.org for a while.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 25.27%. Comparing base (ed8616f) to head (3ab2185).

Files	Patch %	Lines
src/pytest_celery/api/container.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #305   +/-   ##
=======================================
  Coverage   25.27%   25.27%           
=======================================
  Files          37       37           
  Lines        1187     1187           
  Branches      235      235           
=======================================
  Hits          300      300           
  Misses        859      859           
  Partials       28       28           

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[shcheklein]

hey @Nusnus, thanks for running the pipeline for this 🙏 . Let me know if you need anything here or is it good to go as is.

[Nusnus]

hey @Nusnus, thanks for running the pipeline for this 🙏 . Let me know if you need anything here or is it good to go as is.

Thanks for the PR!
I have a very busy week and many PRs to review, but I will sure get to everything as soon as I can.

I’ll let you know if anything else is needed, thank you!