helmfile deploy "GitHub" action

use it like this:

name: Deploy renovate cronjob
on:
  push:
    branches:
      - main

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: https://git.novotna.dev/viky/helmfile-deploy@v0.2.0
        with:
          kubeconfig: "${{ secrets.KUBECONFIG }}"
          action: apply # this is the default, other options are "diff" and "lint"