fix: Correct Poetry install script URL used in CI workflow

[bryantbiggs]

Summary

• Correct Poetry install script URL used in CI workflow

Changes

• Updates the URL where the Poetry install script is located

User experience

Please share what the user experience looks like before and after this change

Checklist

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• [ ] I have performed a self-review of this change
• [ ] Changes have been tested
• [ ] Changes are documented

Acknowledgment

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[codecov-commenter]

Codecov Report

Patch and project coverage have no change.

Comparison is base (c9e5d17) 39.80% compared to head (c291a6c) 39.80%.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #132 +/- ## ======================================= Coverage 39.80% 39.80% ======================================= Files 13 13 Lines 1339 1339 ======================================= Hits 533 533 Misses 806 806 ```

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