Add Bugs Open vs Closed rate for sub-department charts

Why is this change being made?

This change is to review and provide feedback on embedding additional charts to the Sub Department PI page instead of adding to the Dev Team Dashboard.

Review App

• Secure: https://add-bug-charts-to-sub-dept-dashboard.about.gitlab-review.app/handbook/engineering/development/performance-indicators/secure/index.html#quality-indicators
• Defend: https://add-bug-charts-to-sub-dept-dashboard.about.gitlab-review.app/handbook/engineering/development/performance-indicators/defend/index.html#quality-indicators
• Ops: https://add-bug-charts-to-sub-dept-dashboard.about.gitlab-review.app/handbook/engineering/development/performance-indicators/ops/index.html#quality-indicators
• CI/CD: https://add-bug-charts-to-sub-dept-dashboard.about.gitlab-review.app/handbook/engineering/development/performance-indicators/ci-cd/index.html#quality-indicators
• Dev: https://add-bug-charts-to-sub-dept-dashboard.about.gitlab-review.app/handbook/engineering/development/performance-indicators/dev/index.html#quality-indicators
• Growth: https://add-bug-charts-to-sub-dept-dashboard.about.gitlab-review.app/handbook/engineering/development/performance-indicators/growth/index.html#quality-indicators
• Enablement: https://add-bug-charts-to-sub-dept-dashboard.about.gitlab-review.app/handbook/engineering/development/performance-indicators/enablement/index.html#quality-indicators

Author Checklist

• Provided a concise title for the MR
• Added a description to this MR explaining the reasons for the proposed change, per say-why-not-just-what
• Assign this change to the correct DRI
  • If the DRI for the page/s being updated isn’t immediately clear, then assign it to your manager.
  • If your manager does not have merge rights, please ask someone to merge it AFTER it has been approved by your manager in #mr-buddies.
  • If the changes relate to any part of the project other than updates to content and/or data files please make sure to ping @gl-static-site-editor in a comment for a review and merge. For example changes to .gitlab-ci.yml, JavaScript/CSS/Ruby code or the layout files.

For help with failing pipelines reach out in #mr-buddies in Slack