Enable manual dispatch of `script/mirror update` in Actions

name: Mirror

on: push

on:

  push:

    branches:

    - master

  workflow_dispatch:

    inputs:

      beforeRef:

        description: Git commit reference to start comparing from

        required: true

jobs:

  test:

    - name: Update download mirror

      run: script/mirror update "${BEFORE_REF}.."

      env:

        BEFORE_REF: ${{ github.event.push.before }}

        BEFORE_REF: ${{ github.event.before }}${{ github.event.inputs.beforeRef }}

        AMAZON_S3_BUCKET: ruby-build-mirror

        AWS_ACCESS_KEY_ID: AKIAJKAUQVHU6X4CODDQ

        AWS_SECRET_ACCESS_KEY: ${{ secrets.MIRROR_UPLOAD_SECRET }}