⚡️ Add PROBE_PT_LAST_STOW

Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp

         SERIAL_ECHOLNPGM("Tilting mesh (3/3)");
         TERN_(HAS_STATUS_MESSAGE, ui.status_printf_P(0, PSTR(S_FMT " 3/3"), GET_TEXT(MSG_LCD_TILTING_MESH)));
 
-        measured_z = probe.probe_at_point(points[2], PROBE_PT_STOW, param.V_verbosity);
+        measured_z = probe.probe_at_point(points[2], PROBE_PT_LAST_STOW, param.V_verbosity);
         #ifdef VALIDATE_MESH_TILT
           z3 = measured_z;
         #endif

Marlin/src/module/probe.cpp

   if (DEBUGGING(LEVELING)) {
     DEBUG_ECHOLNPAIR(
       "...(", LOGICAL_X_POSITION(rx), ", ", LOGICAL_Y_POSITION(ry),
-      ", ", raise_after == PROBE_PT_RAISE ? "raise" : raise_after == PROBE_PT_STOW ? "stow" : "none",
+      ", ", raise_after == PROBE_PT_RAISE ? "raise" : raise_after == PROBE_PT_LAST_STOW ? "stow (last)" : raise_after == PROBE_PT_STOW ? "stow" : "none",
       ", ", verbose_level,
       ", ", probe_relative ? "probe" : "nozzle", "_relative)"
     );
     const bool big_raise = raise_after == PROBE_PT_BIG_RAISE;
     if (big_raise || raise_after == PROBE_PT_RAISE)
       do_blocking_move_to_z(current_position.z + (big_raise ? 25 : Z_CLEARANCE_BETWEEN_PROBES), z_probe_fast_mm_s);
-    else if (raise_after == PROBE_PT_STOW)
+    else if (raise_after == PROBE_PT_STOW || raise_after == PROBE_PT_LAST_STOW)
       if (stow()) measured_z = NAN;   // Error on stow?
 
     if (verbose_level > 2)

Marlin/src/module/probe.h

   enum ProbePtRaise : uint8_t {
     PROBE_PT_NONE,      // No raise or stow after run_z_probe
     PROBE_PT_STOW,      // Do a complete stow after run_z_probe
+    PROBE_PT_LAST_STOW, // Stow for sure, even in BLTouch HS mode
     PROBE_PT_RAISE,     // Raise to "between" clearance after run_z_probe
     PROBE_PT_BIG_RAISE  // Raise to big clearance after run_z_probe
   };