[CI] Add Danger review to perform automated MR checks

Description

This MR introduces Danger as a job to our ci. This allows us to perform several automated checks on the MR itself. Essentially, it is aimed to be a replacement for any comments of the type "don't forget to ....".

• Title
  • Must begin with one of the allowed scope prefixes: [CI], [Misc], [Tools], [catalogue], [frontend], [scheduler], [taped], [rmcd]
  • Must be 72 characters or fewer (soft limit)
• Description
  • Must not be empty
  • Must include a properly filled-out ### Description section
  • Must not contain the placeholder comment (...Mandatory: provide a description...)
  • Should be at least 40 characters (soft check)
  • Must include all required checklist acknowledgements:
    • - [x] Documentation reflects the changes made.
    • - [x] Merge Request title is clear, concise, and suitable as a changelog entry.
• Labels
  • Must include exactly one type:: label (e.g., type::bug)
  • Must include exactly one workflow:: label (e.g., workflow::testing)
  • Must include exactly one priority:: label (e.g., priority::high)
  • Should include at least one additional label for scoping/context
• Assignee
  • Must have an assignee set
• Reviewers
  • Should have at least one reviewer assigned
• Merge Request Size
  • Warns if more than 500 lines are changed

Checklist

• Documentation reflects the changes made.
• Merge Request title is clear, concise, and suitable as a changelog entry. See this link

References

Closes #1195 (closed)