Use reusable GitHub CI workflows for `test-on-pr` and `matrix-test` once Gooey package Py313 is available on Conda-forge

[bobleesj]

Problem

The test-on-pr and matrix-test CI .yml files in this repository have been modified to pip install all pip.txt dependencies to support Gooey while testing. Please see the PR here #134

Proposed solution

Once Gooey provides conda packages for Python 3.13, update the test-on-pr and matrix-test CI files using the Billinge group's reusable CI scripts.