Update vtkext/private/module/vtkF3DRenderer.h

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: ArchiePayne

vtkext/private/module/vtkF3DRenderer.h

@@ -526,7 +526,7 @@ class vtkF3DRenderer : public vtkOpenGLRenderer
 
   vtkSmartPointer<vtkOrientationMarkerWidget> AxisWidget;
 
-    // Does vtk version support GridAxesActor
+  // Does vtk version support GridAxesActor
 #if VTK_VERSION_NUMBER >= VTK_VERSION_CHECK(9, 4, 20250513)
   vtkNew<vtkGridAxesActor3D> GridAxesActor;
 #endif