Summary: Adds a test that trys to run the planner on all of the scripts in `src/pxl_scripts`. It currently skips any scripts with mutations in them.

Test Plan: New test passes

Reviewers: philkuz, vihang, oazizi

Reviewed By: vihang

Differential Revision: https://phab.corp.pixielabs.ai/D9689

GitOrigin-RevId: 2a759e7131cba9d8c329255b6a3cc85cb95a509e