[charts/portal] Adding provision to configure liveness and readiness probe of all analytics containers

[ksaladi]

Description of the change

• Allowing the configuration of readiness and liveness params for all the analytics containers
• Adding the param to the nginx controller to support upload size limits upto 32MB

Benefits

• Will allow adding suitable readiness and liveness values for specific envs(esp SaaS)

Drawbacks

Applicable issues

• fixes #

Additional information

Checklist

• [x] Chart version bumped in Chart.yaml according to semver.
• [x] Variables are documented in the README.md
• [x] Title of the PR starts with chart name (e.g. [charts/gateway])
• [x] If the chart contains a values-production.yaml apart from values.yaml, ensure that you implement the changes in both files