## Description
- Updated ngnix as default ingress class in `values.yaml`
- Upgraded mongo's deployment image to `v5.0.12` as the previous 4.4.11
is deprecated
- Added `imagePullSecrets` to enable pulling images from private docker
registries
- Added conditional to check for k8s version >=1.1.8 to handle both old
and new k8s version scenarios for setting up the Ingress controller
class name.
Co-authored-by: Goutham Pratapa <goutham@appsmith.com>
