Fix zeros deprecation

Author: maleadt

src/conv.jl

@@ -101,10 +101,10 @@ depthwiseconv!(y::AbstractArray{T,4}, x::AbstractArray{T,4}, w::AbstractArray{T,
   depthwiseconv2d!(y, x, w, padding = pad, stride = stride)
 
 ∇depthwiseconv_data(dy::A, x::A, w::A; pad = 0, stride = 1) where A<:AbstractArray =
-  ∇depthwiseconv_data!(zeros(x), dy, x, w; pad = pad, stride = stride)
+  ∇depthwiseconv_data!(zero(x), dy, x, w; pad = pad, stride = stride)
 
 ∇depthwiseconv_filter(dy::A, x::A, w::A; pad = 0, stride = 1) where A<:AbstractArray =
-  ∇depthwiseconv_filter!(zeros(w), dy, x, w; pad = pad, stride = stride)
+  ∇depthwiseconv_filter!(zero(w), dy, x, w; pad = pad, stride = stride)
 
 ∇depthwiseconv_filter!(dw::AbstractArray{T,4}, dy::AbstractArray{T,4}, x::AbstractArray{T,4}, w::AbstractArray{T,4};
               pad = 0, stride = 1) where T =