How to interpolate variables in secrets

Hi All,

I have a usecase in which i need to use drone secres as a variable .
For example
secrets: [ CGL_PRD_ARTIFACTORY_USER, ${DRONE_COMMIT_AUTHOR^^}_TOKEN ]

Here ${DRONE_COMMIT_AUTHOR^^} is a variable which has some value , but it is not getting interpolated in the .drone.yml file in secrets section.
So basically can we use the variables inside the secret section.

Please reply asap and let me know for any query

Thanks,
Hitesh