Sanity-check NOZZLE_PARK_POINT

Marlin/src/inc/SanityCheck.h

   #endif
 #endif
 
+#if ENABLED(NOZZLE_PARK_FEATURE)
+  constexpr float npp[] = NOZZLE_PARK_POINT;
+  static_assert(COUNT(npp) == XYZ, "NOZZLE_PARK_POINT requires X, Y, and Z values.");
+#endif
+
 /**
  * Individual axis homing is useless for DELTAS
  */