Check rate limit in an action

master.yml

name: Do some stuff
on: [push]
jobs:
  test:
    name: Do some stuff
    runs-on: ubuntu-latest
    steps:
      - name: Check API rate limit
        run: |
          curl -s "https://api.github.com/rate_limit" -H "Authorization: token $GITHUB_TOKEN"
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}