GitHub Action to upload to Apple's TestFlight service

Usage:

uses: apple-actions/upload-testflight-build@v1
with: 
  app-path: 'path/to/application.ipa`  
  issuer-id: ${{ secrets.APPSTORE_ISSUER_ID }}
  api-key-id: ${{ secrets.APPSTORE_API_KEY_ID }}
  api-private-key: ${{ secrets.APPSTORE_API_PRIVATE_KEY }}

Additional Arguments

See action.yml for more details.