Add maxPayloadSize helm chart value for response caching

[kcbabo]

Version

1.12.x (beta)

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

maxPayloadSize can be set via the Cache Settings resource today, but not set through Helm chart values.

Describe the solution you'd like

Add a Helm chart value to set the default maxPayloadSize.

Describe alternatives you've considered

No response

Additional Context

No response