[wpilib] DutyCycleEncoder: Fix reset behavior (#5287)

reset should set the offset to the properly scaled position provided by getAbsolutePosition, not the raw duty cycle.

wpilibj/src/main/java/edu/wpi/first/wpilibj/DutyCycleEncoder.java

@@ -246,7 +246,7 @@ public class DutyCycleEncoder implements Sendable, AutoCloseable {
     if (m_counter != null) {
       m_counter.reset();
     }
-    m_positionOffset = m_dutyCycle.getOutput();
+    m_positionOffset = getAbsolutePosition();
   }
 
   /**