Update AGN & SLSN models for ELASTICC

[erusseil]

Solving issue 351 : #351
Models are updated and joblib is completely replacing pkl

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (9229c20) 53.46% compared to head (fff132c) 53.40%.

❗ Current head fff132c differs from pull request most recent head 4a3aec2. Consider uploading reports for the commit 4a3aec2 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #353      +/-   ##
==========================================
- Coverage   53.46%   53.40%   -0.07%     
==========================================
  Files          33       33              
  Lines        1513     1511       -2     
==========================================
- Hits          809      807       -2     
  Misses        704      704              

Files	Coverage Δ
fink_science/agn/classifier.py	96.87% <100.00%> (-0.10%)	⬇️
fink_science/agn/kernel.py	100.00% <100.00%> (ø)
fink_science/agn/unit_examples.py	100.00% <100.00%> (ø)

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