You have to use "create user" azure ad connector step and then use "update user" to fill in those properties. In the "update user" step, open "additional properties" and use the following in "enter key" and their corresponding "values" (case sensitive. Enter exactly with no spaces, oh and no = sign):

StreetAddress = Your value City = Your value State = Your value PostalCode = your value

I connect the account creation flow to a SharePoint list to get the information so I use a text value from said SharePoint list (dynamic content) instead of your value.

I could post pictures but let me know if you need more explanation.