feat: add auth0-cli plugin

[gunzy83]

Summary

Description:

• Tool repo URL: https://github.com/auth0/auth0-cli
• Plugin repo URL: https://github.com/gunzy83/asdf-auth0-cli

Checklist

• [x] Format with scripts/format.bash
• [x] Test locally with scripts/test_plugin.bash --file plugins/auth0-cli
• [x] Your plugin CI tests are green
  • Tip: use the plugin_test action from asdf-actions in your plugin CI