Block: Type hint Block constructor, follow-up on I37ab858494a173c6982bb

Block: Type hint Block constructor, follow-up on I37ab858494a173c6982bb

Since 1.26, both options array and individual arguments were accepted but
was later removed in I37ab858494a173c6982bb (support for multiple args was
dropped) and **only** array of options is accepted from 1.33 since the use
of individual arguments all disappeared, see usage below;

Usage
=====

https://codesearch.wmflabs.org/search/?q=new%20Block%5C(&i=nope&files=&repos=

Bug: T220656
Change-Id: Id5266400def9fafbc89d5bdcdb63aed2a63da34d