Implement renovate monitoring against chart

Implement renovate tracking against:

• appVersion in chart yaml
• bb annotation in chart yaml

Follow docs for implementing and testing renovate: https://repo1.dso.mil/platform-one/big-bang/pipeline-templates/renovate-runner/-/blob/main/BigBang.md#testing (Will need ability to fork within repo1)

See Tempo's renovate.json for an example of monitoring Chart.yaml version and images.