Fix non-virtual-dtor warnings from G4VFastSimSensitiveDetector

source/processes/parameterisation/include/G4VFastSimSensitiveDetector.hh

@@ -54,6 +54,9 @@
 class G4VFastSimSensitiveDetector
 {
  public:
+
+  virtual ~G4VFastSimSensitiveDetector() = default;
+
   /// Create a hit.
   ///
   /// It checks if G4VSensitiveDetector is also used as a base class,