Merge pull request #225 from softwaremill/update/scala-library-2.13.9

Update scala-library to 2.13.9

Author: mergify[bot]

build.sbt

@@ -5,7 +5,7 @@ import com.typesafe.tools.mima.core._
 
 val scala2_11 = "2.11.12"
 val scala2_12 = "2.12.17"
-val scala2_13 = "2.13.8"
+val scala2_13 = "2.13.9"
 val scala2 = List(scala2_11, scala2_12, scala2_13)
 val scala3 = List("3.2.0")