Switch from poetry to pixi

[Dhananjhay]

Proposed changes

Describe the changes implemented in this pull request. If the changes fix a bug or resolves a feature request, be sure to link the issue. Please explain the issue and how the changes address the issue.

This PR introduced pixi support and removes poetry as a package manager.

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 functionalitiy)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation (non-breaking change which adds content to documentation)
• Other (if none of the other choices apply)

Checklist

Put an x in the boxes that apply. You can also fill these out after creating the PR. If you are unsure about any of the choices, don't hesitate to ask!

• Changes have been tested to ensure that fix is effective or that a feature works.
• Changes pass the unit tests
• Changes pass the wet run tests
• Code has been run through the poe quality task
• I have included necessary documentation or comments (as necessary)
• Any dependent changes have been merged and published

Notes

All PRs will undergo unit and wet run testing before being reviewed. You may be requested to explain or make additional changes before the PR is accepted.