Fix finding exceptions test files in run.py - #2251

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

System package installation failed. Re-synchronizing package index files and retrying installation. Error details: the process '/usr/bin/sudo' failed with exit code 100