[charts/gateway]Us896244 dbupgrade job

[uppoju]

Description of the change

Added DB upgrade job for creating OTK DB Supported Demo DB for OTK Add read only connection support

Benefits Customers can use OTK without configuring external DB for validation purpose

Drawbacks

NA

Applicable issues

NA

• 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

[uppoju]

There's a ref in production-values.yaml that needs to be updated and default for otk.enabled should be false in values.yaml.

Chart version should be 3.0.13

Please check the linting errors with chart-tester locally - if the check fails the release pipeline will too

Addressed all the comments