Draft: Feat: Add rundeck integration

What does this MR do and why?

This MR propose a new integration for Rundeck webooks.

I would like to add the Authorization String, it's a simple header Authorization to add for security access, but I don't found the correct solution to pass an additional header to the hook execution.

Headers are created on build_headers, but I can add a new one. Should I create a new class for Rundeck hook or add a custom headers feature on build_headers ? I need your help an your advice for this part.

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How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

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