Add SCM metadata to the transactions that are Multibranch Pipelines

[v1v]

• [ ] Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
• [ ] Ensure that the pull request title represents the desired changelog entry
• [ ] Please describe what you did
• [ ] Link to relevant issues in GitHub or Jira
• [ ] Link to relevant pull requests, esp. upstream and downstream changes
• [ ] Ensure you have provided tests - that demonstrates feature works or fixes the issue

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What

Populate the SCM metadata when using Multibranch Pipelines to the transaction.

Why

Help to know what sources are the ones that created the pipeline without the need to go to the Default checkout span.

Action

• [ ] Agree if this is helpful
• [ ] Support for other MBP implementations, see -> https://www.jenkins.io/doc/book/pipeline/multibranch/#supporting-pull-requests
• [ ] Add ITs