feature: add __version__ attribute to Python package

[d33bs]

This PR adds the __version__ attribute to the Python package. This is commonly added to Python packages to help observe the version of a package through the package API. I tried to make this with dynamic versioning in mind, but please don't hesitate to provide feedback if this misses the mark.

Closes #5615

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84.46%. Comparing base (1174399) to head (713c1f0).
⚠️ Report is 3 commits behind head on develop.

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[AdamGS]

This LGTM, do you want to fix the linter issue so we can merge it?

[d33bs]

Thanks @AdamGS! Yes, I'll go ahead and fix the linting issue.

[codspeed-hq]

CodSpeed Performance Report

Merging #5641 will degrade performances by 10.49%

_{Comparing d33bs:python-version-attribute (713c1f0) with develop (1174399)}

Summary

❌ 2 regressions
✅ 1197 untouched
⏩ 624 skipped¹

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
❌	take_map[(0.05, 1.0)]	3.6 ms	4 ms	-10.49%
❌	take_map[(0.1, 1.0)]	4.3 ms	4.8 ms	-10.21%

Footnotes

1. 624 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[AdamGS]

Thank you for your contribution!