How to increase the file storage available for deployment of a Azure Function app (Consumption Plan)

Question

I have a Consumption Plan for a Function App.

When I deploy my solution (C# solution with a heavy codebase) I get this:

Failed to proceed. 

Status code 500, 

"

{

"Message":"An error has occurred.",

"ExceptionMessage":"There is not enough space on the disk.\r\n...

}

"

It says here: https://learn.microsoft.com/en-us/azure/azure-functions/storage-considerations?tabs=azure-cli that I need to increase my Azure Files storage service.

I would like to purchase 5 GB (I think currently I only have 1 GB).

How do I purchase this and how do I link it to my current Function App?

I thought it would be on the Scale up option of the Microsoft Azure Portal but it's grayed out for my Function App.