update a statistics version

Author: AndreiKingsley

gradle/libs.versions.toml

@@ -11,7 +11,7 @@ dataframe = "0.14.1"
 serialization = "1.6.3"
 datetime = "0.6.0"
 html = "0.11.0"
-statistics = "0.3.1-dev-30"
+statistics = "0.3.1-dev-31"
 letsPlot = "4.7.3"
 letsPlotImage = "4.3.3"
 mockk = "1.13.10"