Add add_arduino_component to esp32.rst

[hr-kapanakov]

Description:

Add new configuration to ESP32 that allow adding Arduino framework as ESP-IDF component.

Related issue (if applicable): fixes https://github.com/esphome/feature-requests/issues/2369

Pull request in esphome with YAML changes (if applicable): esphome/esphome#6894

Checklist:

• [X] I am merging into next because this is new documentation that has a matching pull-request in esphome as linked above.
  or

• [ ] I am merging into current because this is a fix, change and/or adjustment in the current documentation and is not for a new component or feature.

• [ ] Link added in /index.rst when creating new documents for new components or cookbook.

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[github-actions[bot]]

There hasn't been any activity on this pull request recently. This pull request has been automatically marked as stale because of that and will be closed if no further activity occurs within 7 days. Thank you for your contributions.

[github-actions[bot]]

There hasn't been any activity on this pull request recently. This pull request has been automatically marked as stale because of that and will be closed if no further activity occurs within 7 days. Thank you for your contributions.