Update GH Action to current release

[Rotzbua]

Removes warning while building:

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, actions/cache@v1, actions/setup-python@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/