shh token created, git clone added

What does this MR do?

This MR is written for issues/265 (gitlab-qa#265 (closed))

Are there points in the code the reviewer needs to double check?

SSH key is created inside the temporary dir but I need to use the private-key in the scenario section so I copy the private-key to the home folder. How to handle it better?

Why was this MR needed?

It automatically checks the following:

1. the ssh-key creation
2. adding the public key in profile/keys
3. clone the project with ssh key (private-key of the generetad key dynamically)
4. commits to remote and check the remote files
5. remove the added ssh-key

Screenshots (if relevant)

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• API support added
• Tests added for this feature/bug
• Conform by the code review guidelines
  • Has been reviewed by a UX Designer
  • Has been reviewed by a Frontend maintainer
  • Has been reviewed by a Backend maintainer
  • Has been reviewed by a Database specialist
• Conform by the merge request performance guides
• Conform by the style guides
• If you have multiple commits, please combine them into a few logically organized commits by squashing them
• Internationalization required/considered
• End-to-end tests pass (package-and-qa manual pipeline job)

What are the relevant issue numbers?

gitlab-qa#265 (closed)