feat: Introduce lazy validation

[borchero]

Motivation

Fixes #93.

Changes

• Introduce a custom polars plugin to allow for lazily raising on validation errors
• Add an eager parameter to {Schema,Collection}.{validate,filter} to allow for lazy validation
  • The default remains True as validation should, by default, serve as a barrier
• Fix the PyPI build to actually perform a release build (lol)

NOTE: The eager validation/filter performance is equivalent (and tends to be slightly faster than before). There are, however, significant performance penalties for lazy validation/filtering in collections as well as a notable performance drop for lazy filtering of schemas. This is likely largely due to pola-rs/polars#24129.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (12ec352) to head (b42b747).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #179   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           50        53    +3     
  Lines         2915      2996   +81     
=========================================
+ Hits          2915      2996   +81     

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[AndreasAlbertQC]

Thanks @borchero ! I only really looked at the python code so far :) One request: Could take this opportunity to add a validation.md under docs/sites/features ? Particularly with eager / lazy differences, I think users will appreciate docs for this now. Also: We need to review the existing docs, bc this surely changes stuff, e.g. in quickstart

[borchero]

Could take this opportunity to add a validation.md under docs/sites/features ?

This is still missing, I think this can be reviewed regardless 😄

[AndreasAlbertQC]

Thanks @borchero ! LGTM modulo docs changes

[delsner]

Awesome work @borchero 👏 nothing blocking from my side, looks great.

[delsner]

For some reason I'm getting this runtime error when executing the tests locally (osx-arm64):

E pyo3_runtime.PanicException: called Result::unwrap() on an Err value: DlSym { desc: "dlsym(0x2839e8910, _polars_plugin_get_version): symbol not found" }

[borchero]

For some reason I'm getting this runtime error when executing the tests locally (osx-arm64):

Since CI doesn't fail it does not seem to be an issue with the implementation. Let's debug this offline.