Add Additional Parameters to the Helm Chart

[lorenzophys]

Currently, the Helm chart for the PVC autoscaler project lacks support for parameters like podAnnotations, tolerations, and nodeSelector.

Tasks:

1. Update the values.yaml file to include the podAnnotations, tolerations and nodeSelector parameters
2. Update the chart template and ensure that these parameters will be templated in the right place
3. Update the Helm chart version