ECA Action for rendering an arbitrary form

Problem/Motivation

I'm using ECA module to build a custom block. In this block, I would like to render an arbitrary form by a form class name.

There has been a discussion on Slack for this request:
https://drupal.slack.com/archives/C0287U62CSG/p1723751114306679

I ended up building a new action plugin in the module ECA Render. I think it might be helpful for other developers when using ECA. Attached bellow is the patch that I used in my project to create a new action plugin "Render: Arbitrary Form". I'm happy to have someone to review my patch, and it would be great if this action could be ported to ECA module.

Thanks