Correct replacement for read(io, type dims) (#25878)

It says

> read(io, type, dims) is deprecated to read!(io, Array{type}(dims)) (#21450).

but in turn `Array{type}(dims)` is deprecated to `Array{type}(uninitialized, dims)`. Fix to inform users about the correct replacement.

NEWS.md

@@ -708,7 +708,7 @@ Deprecated or removed
     in favor of `replace(s::AbstractString, pat => r; [count])` ([#25165]).
     Moreover, `count` cannot be negative anymore (use `typemax(Int)` instead ([#22325]).
 
-  * `read(io, type, dims)` is deprecated to `read!(io, Array{type}(dims))` ([#21450]).
+  * `read(io, type, dims)` is deprecated to `read!(io, Array{type}(uninitialized, dims))` ([#21450]).
 
   * `read(::IO, ::Ref)` is now a method of `read!`, since it mutates its `Ref` argument ([#21592]).