fix keyboard progress increment getting stuck at 6 (#572)

`setMax` updates the internal "mKeyProgressIncrement" and on initial load the value will be set to 6 due to Math.round(DEFAULT_TOTAL_STEPS (128) / 20). And its hard to get it out of 6 if the range is not high enough so lets revert it back to 1 to respect mStep

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Co-authored-by: Bartosz Klonowski <[email protected]>

Author: vafada

package/android/src/main/java/com/reactnativecommunity/slider/ReactSlider.java

@@ -216,6 +216,7 @@ private void updateAll() {
       mStepCalculated = (mMaxValue - mMinValue) / (double) DEFAULT_TOTAL_STEPS;
     }
     setMax(getTotalSteps());
+    setKeyProgressIncrement(1);
     updateLowerLimit();
     updateUpperLimit();
     updateValue();