Chore/upgrade ipywidgets version

[marcofavoritobi]

Proposed changes

• chore: fix ipywidgets version >=8.0.0,<8.0.5
  afb5582
  This change is required by the release of ipywidgets at version 8.0.5.

  Using the new Comm Python package jupyter-widgets/ipywidgets#3533

One of the changes in this new version is the removal of the dependency
ipykernel, which we would require to add it as explicit dependency.

Due to potential breaking changes, we fix its maximum version below 8.0.5.

• chore: add ipykernels@^6.22.0 in main dependencies

Fixes

n/a

Types of changes

What types of changes does your code introduce?
Put an x in the boxes that apply

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

Put an x in the boxes that apply.

• I have read the CONTRIBUTING doc
• I am making a pull request against the main branch (left side). Also you should start your branch off our main.
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works

Further comments

n/a

[codecov-commenter]

Codecov Report

Merging #54 (6b225e0) into main (c0e2e68) will increase coverage by 0.06%.
The diff coverage is 98.90%.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main      #54      +/-   ##
==========================================
+ Coverage   96.86%   96.92%   +0.06%     
==========================================
  Files          31       34       +3     
  Lines        1499     1563      +64     
==========================================
+ Hits         1452     1515      +63     
- Misses         47       48       +1     

Impacted Files	Coverage Δ
black_it/calibrator.py	97.00% <97.50%> (-0.30%)	⬇️
black_it/schedulers/__init__.py	100.00% <100.00%> (ø)
black_it/schedulers/base.py	100.00% <100.00%> (ø)
black_it/schedulers/round_robin.py	100.00% <100.00%> (ø)
black_it/utils/json_pandas_checkpointing.py	100.00% <100.00%> (ø)