Add Chart for DORA Change Failure Rate metric

What does this MR do and why?

• Adds the change failure rate charts to the project an group CI/CD analytics pages.
• Adds some additional documentation
• The chart component will be introduced in !91459 (merged)

Screenshots or screen recordings

These are strongly recommended to assist reviewers and reduce the time to merge your change.

Project CI/CD Analytics	Group CI/CD Analytics

How to set up and validate locally

NOTE: Ensure you have an EE license

1. Apply the diff from the comment below
2. Navigate to CI/CD analytics (group and / or project)
3. Click on the "Change failure rate" tab

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #357072 (closed)