Swad/infrang 4971

[swadkumar]

JIRA: https://clever.atlassian.net/browse/INFRANG-4971

Overview:

What does this change do?

This change attempts to fix the error caused by unused import of aws by using a local function to return pointer to a string

Why is this change needed?

Avoid unused import bug in DynamoDB tests generated using wag template

How was this change tested?

Tested by generating samples from template in WAG and checking syntax

Checklist:

• [x] Run make build
• [x] Run make generate
• [x] Update the current version in the /VERSION file.