Pydantic v2

[astronautas]

As requested in the issue, PR migrates the codebase to PydanticV2. PydanticV2 introduces a plethora of performance optimisations (e.g. by being Rust-backed for validations), and some APIs (like root models can wrap Python types now) have been refined.

Changes:

• Applied official migration tool.
• RootModel either now wraps a Python data structure or user classes have to inherit from RootModel (applied this). __root__ field got changed to root.

TODO:

• Cleanup 🧹

[codecov]

Codecov Report

Merging #67 (7aa698b) into main (d6884d2) will decrease coverage by 0.12%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #67      +/-   ##
==========================================
- Coverage   95.42%   95.31%   -0.12%     
==========================================
  Files          28       28              
  Lines        1531     1537       +6     
==========================================
+ Hits         1461     1465       +4     
- Misses         70       72       +2     

Files Changed	Coverage
tests/test_metadata.py	ø
databooks/data_models/base.py	100.00%
databooks/data_models/cell.py	100.00%
databooks/data_models/notebook.py	100.00%
tests/test_cli.py	100.00%
tests/test_conflicts.py	100.00%
tests/test_data_models/test_notebook.py	100.00%
tests/test_git_utils.py	100.00%

[murilo-cunha]

Thanks for the contribution!
It looks great! I also like the overall improvements!
Some small questions and comments here and there. I can also take this up later if you'd like

[astronautas]

Thanks for the contribution! It looks great! I also like the overall improvements! Some small questions and comments here and there. I can also take this up later if you'd like

All good, very glad - I am not too busy nowadays either way still, and it's fun to contribute to actual OSS for the first time.

[murilo-cunha]

Changes look good! Thanks again for your time and effort!

I'd just look into the __eq__ and aside from that I think we're good to go!

[astronautas]

Changes look good! Thanks again for your time and effort!

I'd just look into the __eq__ and aside from that I think we're good to go!

Looked at it. Had to dig very deep, but in essence, bumped Pydantic even more, and there was no need to keep any custom __eq__ anymore, and continue relying on BaseModel.__eq__, the way it was and should be.

Ready for review again!

[murilo-cunha]

Looks awesome! Just one very small change - pedantry really
I can also make these small changes - but it'll be a bit later

[astronautas]

Updated!

[murilo-cunha]

Awesome! Thanks a lot!
Big improvements!!

[astronautas]

🤝