expired() is not const qualified in PolledTmeout.

Author: dok-net

libraries/ESP8266WiFiMesh/src/ExpiringTimeTracker.h

@@ -61,7 +61,7 @@ class ExpiringTimeTracker : private esp8266::polledTimeout::oneShotMs {
    * Get the time since the ExpiringTimeTracker instance creation or the last reset(), whichever is more recent.
    */
   uint32_t elapsedTime() const;
-  bool expired() const;
+  bool expired();
   void reset();
   void reset(const uint32_t newDuration);
   void reset(const calculatorType newDurationCalculator);