chore: fix jest path to use pnpx command

[jrson83]

closes #70

[codecov[bot]]

Codecov Report

Patch and project coverage have no change.

Comparison is base (e3766bf) 2.76% compared to head (c409654) 2.76%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #71 +/- ## ===================================== Coverage 2.76% 2.76% ===================================== Files 44 44 Lines 2786 2786 Branches 57 57 ===================================== Hits 77 77 Misses 2666 2666 Partials 43 43 ```

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