feat(aws-eks-asg-rolling-update-handler): Add option to create PodMonitor

[kilitr]

Summary

this enables usage of PodMonitor CustomResource in kube-prometheus-stack and it opens the possibility of port-forwarding.

In my opinion this shouldnt be notable in existing deployments.

Checklist

• Tested and/or added tests to validate that the changes work as intended, if applicable.
• Updated documentation in README.md, if applicable.

[kilitr]

I need this in order to use a PodMonitor like this:

apiVersion: monitoring.coreos.com/v1
kind: PodMonitor
metadata:
  name: rolling-update-handler-metrics
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: aws-eks-asg-rolling-update-handler
  podMetricsEndpoints:
  - port: metrics

[TwiN]

Can you bump the version in the Chart.yaml file?

[kilitr]

sure :)