fix: check for reactant primitives

Author: avik-pal

src/Tracing.jl

@@ -427,7 +427,7 @@ function make_tracer(
     if haskey(seen, prev)
         return seen[prev]
     end
-    if mode == ArrayToConcrete && eltype(RT) <: AbstractFloat
+    if mode == ArrayToConcrete && eltype(RT) <: ReactantPrimitives
         return seen[prev] = ConcreteRArray(prev)
     end
     TT = traced_type(eltype(RT), (), Val(mode))