GitHub Actions can be used to do something whenever something happens in one of your GitHub repositories. If you are not familiar with GitHub Actions, check out my article Getting Started with GitHub Actions.

actions/setup-python can be used to install Python in a runner VM.

name: GitHub Action
run-name: ${{ github.workflow }} run by ${{ github.actor }}
on:
  push:
    branches:
      - main
jobs:
  restart-docker-container:
    runs-on: ubuntu-latest
    steps:      
      - name: setup python in the runner VM
        uses: actions/setup-python@v5
        with:
          python-version: '3.12'