[Docs] : MongoDB - Support for Serverless MongoDB

[jnikhila]

Refer slack

Update MongoDB docs to add support for serverless MongoDB.

[jnikhila]

@sumitsum and @rohan-arthur - Could you please add pointers to the ticket?

[Pranay105]

Hey we are closing this ticket, hoping this is just a driver update and it does not need documentation. If otherwise, please reopen this ticket and let us know the information we need to add to the docs. @rohan-arthur

[meshuamam]

Unfortunately, MongoDB serverless is still not supported