Add nodeSelector, tolerations and affinity to Pod

[vandot]

Motivation

Currently there is no option to assign switchboard pod to a specific node.

Explanation

Using these options you can assign switchboard pod to a specific node

• Assigning Pods to Nodes (nodeSelector and affinity)
• Taints and Tolerations

  Changes

Checklist

• [ ] I added relevant tests - tests not needed
• [x] I have updated the documentation if necessary - updated values.yaml

[borchero]

I'm not sure why the CI fails, I'll have to investigate this (seems to be unrelated to this PR).

[vandot]

@borchero any luck in fixing the CI?

[borchero]

Working on it, already found the issue. Will finish this tomorrow or Friday ... sorry for the delay 😅