ENH: Replace "vnl_sample.h" with <random> in OrientImageFilterTest

Follow-up to pull request #5611
commit f7daf24
"ENH: Replace "vnl/vnl_sample.h" with `<random>`, in Core tests"

Author: N-Dekker

Modules/Filtering/ImageGrid/test/itkOrientImageFilterTest.cxx

@@ -19,7 +19,7 @@
 #include "itkOrientImageFilter.h"
 #include "itkImageToImageFilter.h"
 #include "itkTestingMacros.h"
-#include "vnl/vnl_sample.h"
+#include <random> // For mt19937.
 
 using ImageType = itk::Image<unsigned int, 3>;
 
@@ -32,10 +32,14 @@ CreateRandomImage()
   auto                           img = ImageType::New();
   img->SetRegions(region);
   img->Allocate();
+
+  std::mt19937                                randomNumberEngine{};
+  std::uniform_int_distribution<unsigned int> randomNumberDistribution(0, 32767);
+
   itk::ImageRegionIterator<ImageType> ri(img, region);
   while (!ri.IsAtEnd())
   {
-    ri.Set(static_cast<unsigned int>(vnl_sample_uniform(0, 32767)));
+    ri.Set(randomNumberDistribution(randomNumberEngine));
     ++ri;
   }
   return img;