How to request for 'Name-squatting' of a dead github username?

There’s a certain username that will be perfect for me but currently its registered to someone else who has total 0 activity on that account from the day (s)he joined Github.

I have read an article where Github was kind enough to release a username if its not in use but I didn’t find any communication forum specific to this.

Can somebody guide me how to contact support for this ?

Article I read -

:wave: Welcome!

You can always create a ticket with support to query if the username is indeed available. Please make sure you specify the username you are interested in.