[Feature Request] Escalator auto reload configuration on change

[Jacobious52]

Is your feature request related to a problem? Please describe.

Updating escalator config currently requires a pod restart. We should update escalator to automatically read new config upon changing on disk.

Describe the solution you'd like

Check for changes in nodegroup config before each run. If safe to do so, run with the new config.

Describe alternatives you've considered

• Dynamically reading config from a NodeGroup CRD
• Not auto updating config

Additional context

This is useful for updates of escalator config without needing manual pod rotation.