Config: throw error instead of silently failing if config type and their respective keys mismatch

[Prajna1999]

Describe the bug
Currently while creating versions of pre-existing configs if the user sends keys not compatible with type=text/stt/tts the call silently fails.

To Reproduce
Update any version with keys incompatible with the type of config i.e for tts config add temperature field.

Expected behavior
Error to bubble up to the user.

[vprashrex]

Closing the issue ... it is already done - #628