Create a new zipped asset when a new release is published

main.yml

name: Create release

on:
  release:
    types:
      - created

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2

    - name: Get Composer Cache Directory
      id: composer-cache
      run: |
        echo "::set-output name=dir::$(composer config cache-files-dir)"
    - uses: actions/cache@v2
      with:
        path: ${{ steps.composer-cache.outputs.dir }}
        key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
        restore-keys: |
          ${{ runner.os }}-composer-

    - name: Install dependencies
      run: |
        composer install -o -q

    - name: Zip Folder
      run: zip -r ${{ github.event.repository.name }}.zip . -x ".git/*" ".github/*" "phpcs.xml" "composer.json" "composer.lock" ".gitignore"

    - name: Release
      uses: softprops/action-gh-release@v1
      if: startsWith(github.ref, 'refs/tags/')
      with:
        files: ${{ github.event.repository.name }}.zip
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}