Issue wildcard certificate for Heroku & Cloudflare

certifcate.yml

name: Issue Certificate

on:
  schedule: 
    - cron: 32 4 * * 3
  workflow_dispatch:

jobs:
  request_certificate:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - name: Set up Heroku 
      run: |
        curl https://cli-assets.heroku.com/install.sh | sh
        git clone https://github.com/Neilpang/acme.sh.git || true
        cd ./acme.sh
        ./acme.sh --install --force
        export CF_Token=$CLOUDFLARE_API_KEY
        ~/.acme.sh/acme.sh --server letsencrypt --issue -d $DOMAIN  -d "*.$DOMAIN"  --dns dns_cf
        heroku certs:update "/home/runner/.acme.sh/$DOMAIN/fullchain.cer" "/home/runner/.acme.sh/$DOMAIN/$DOMAIN.key" --confirm $HEROKU_APP --app $HEROKU_APP        
    env:
      DOMAIN: domain.com
      HEROKU_APP: some-heroku-app
      CLOUDFLARE_API_KEY: ${{ secrets.CLOUDFLARE_API_KEY }} # Make sure this can edit the DNS zone of domain.com
      HEROKU_API_KEY: ${{ secrets.HEROKU_API_KEY }}