fix: integration tests with TabPFN

[martilut]

This is a 🐛 bug fix.

Summary

• fix calling params when None
• fix TabPFN cache path
• fix strategy test
• remove tabpfn-extensions and AutoTabPFN

[martilut]

/fix-pep8

[codecov]

Codecov Report

❌ Patch coverage is 0% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 80.37%. Comparing base (e8532be) to head (9cc29bd).
⚠️ Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
...luation/operation_implementations/models/tabpfn.py	0.00%	5 Missing ⚠️
fedot/core/operations/evaluation/tabpfn.py	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1398      +/-   ##
==========================================
- Coverage   80.38%   80.37%   -0.01%     
==========================================
  Files         150      150              
  Lines       10852    10843       -9     
==========================================
- Hits         8723     8715       -8     
+ Misses       2129     2128       -1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.