Test deployment of artifacts across nodes using AWS EFS Provisioner

[chirangaalwis]

Description: It was recognized that AWS EBS Kubernetes in-tree provisioner [1] does not support ReadWriteMany access mode required for WSO2 Kubernetes resource deployments.

Hence, it was proposed to test out the external AWS EFS provisioner [2] which was deemed to support ReadWriteMany access mode.

[1]: Access Mode chart [2]: AWS EFS Provisioner

Affected Product Version: Kubernetes and Helm resources for WSO2 Enterprise Integrator v6.5.x and below