Add strides and stride deprecation to NEWS (#25510)

* Add strides and stride deprecation to NEWS

The methods themselves are still used and called, we just no longer provide a default implementation for all `AbstractArrays`

Author: dlfivefifty

NEWS.md

@@ -941,6 +941,10 @@ Deprecated or removed
 
   * `findin(a, b)` has been deprecated in favor of `find(occursin(b), a)` ([#24673]).
 
+  * The generic implementations of `strides(::AbstractArray)` and `stride(::AbstractArray, ::Int)`
+     have been deprecated. Subtypes of `AbstractArray` that implement the newly introduced strided
+     array interface should define their own `strides` method ([#25321]).
+
 
 Command-line option changes
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