Refine endstops fixes (#12413)

When endstops/probe are enabled `ENDSTOP_NOISE_THRESHOLD` calls to `update` are required to properly re-sync endstops/probe status.

Marlin/src/module/endstops.h

@@ -162,6 +162,8 @@ class Endstops {
       static void enable_z_probe(const bool onoff=true);
     #endif
 
+    static void resync();
+
     // Debugging of endstops
     #if ENABLED(PINS_DEBUGGING)
       static bool monitor_flag;