fix dispatch constraint: restrict to NTuple

Co-authored-by: Rafael Fourquet <fourquet.rafael@gmail.com>

Author: nsajko

stdlib/Random/src/misc.jl

@@ -260,7 +260,7 @@ end
 shuffle!(a::AbstractArray) = shuffle!(default_rng(), a)
 
 """
-    shuffle([rng=default_rng(),] v::Union{Tuple,AbstractArray})
+    shuffle([rng=default_rng(),] v::Union{NTuple,AbstractArray})
 
 Return a randomly permuted copy of `v`. The optional `rng` argument specifies a random
 number generator (see [Random Numbers](@ref)).