OIDC Session Extending API doesnt output a Body in the API Response

[ShanikaWickramasinghe]

How to reproduce:

1. Setup playground app
2. Obtain ID Token using authorization grant type
3. Decode the ID token and obtain value for isk
4. Try out the below API as super admin

curl --location --request GET 'https://localhost:9443/identity/extend-session?idpSessionKey=bb279c0da71249ad1d5679e05668067f5792d00bc488d97e2942c1377b4ad5d0' \
--header 'Authorization: Basic YWRtaW46YWRtaW4='

Actual Behavior Currently getting only the status code as 200

Expected behavior: There should be a response body for the API response

Environment information (Please complete the following information; remove any unnecessary fields) : IS 5.12.0 alpha 16

[piraveena]

Now we don't return anything in the API response. We return status code as 200 OK. We can additionally add some improvements to the response, like how long the session extended or expiry time. But we can track this for future.