🩹 Fixup USE_Z_MIN conditions

Do not define USE_Z_MIN or HAS_Z_MIN_STATE when using USE_PROBE_FOR_Z_HOMING and not Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN.

Author: The-EG

Marlin/src/inc/Conditionals_post.h

@@ -1992,7 +1992,7 @@
   #define HAS_Y_STATE 1
 #endif
 
-#if _USE_STOP(Z,,MIN,ENABLED(Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN))
+#if _USE_STOP(Z,,MIN,ENABLED(Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN)) && !(ENABLED(USE_PROBE_FOR_Z_HOMING) && DISABLED(Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN)) 
   #define USE_Z_MIN 1
 #endif
 #if _USE_STOP(Z,,MAX,)

Marlin/src/inc/SanityCheck.h

@@ -2384,8 +2384,8 @@ static_assert(NUM_SERVOS <= NUM_SERVO_PLUGS, "NUM_SERVOS (or some servo index) i
     #error "Y_MIN_PIN, Y_STOP_PIN, or Y_SPI_SENSORLESS is required for Y axis homing."
   #elif Y_HOME_TO_MAX && !HAS_Y_MAX_STATE
     #error "Y_MAX_PIN, Y_STOP_PIN, or Y_SPI_SENSORLESS is required for Y axis homing."
-  #elif Z_HOME_TO_MIN && !HAS_Z_MIN_STATE
-    #error "Z_MIN_PIN, Z_STOP_PIN, or Z_SPI_SENSORLESS is required for Z axis homing."
+  #elif Z_HOME_TO_MIN && !(HAS_Z_MIN_STATE || ENABLED(USE_PROBE_FOR_Z_HOMING))
+    #error "Z_MIN_PIN, Z_STOP_PIN, Z_SPI_SENSORLESS, or USE_PROBE_FOR_Z_HOMING is required for Z axis homing."
   #elif Z_HOME_TO_MAX && !HAS_Z_MAX_STATE
     #error "Z_MAX_PIN, Z_STOP_PIN, or Z_SPI_SENSORLESS is required for Z axis homing."
   #elif I_HOME_TO_MIN && !HAS_I_MIN_STATE