[Spike] Move affinity block to values

[MKlimuszka]

Research spike to determine feasibility and loe for this feature.

Request description:

Improve the helm chart features for rancher

Actual behavior:

Unable to set affinities for rancher pod outside of a hardcoded definition
Unable to set tolerations for rancher pod
Unable to set nodeSelector for rancher pod
Unable to set resources for the audit logs sidecar

Expected behavior:

Give the ability to set affinities for rancher pod
Give the ability to set tolerations for rancher pod
Give the ability to set nodeSelector for rancher pod
Give the ability to set resources for the audit logs sidecar

Original reporter is willing to open a PR, but we need to know if that's advisable.
SURE-6244