Update scala-library to 2.11.12

Author: scala-steward

build.sbt

@@ -2,7 +2,7 @@ name := "scala-retry"
 
 organization := "com.github.hipjim"
 
-crossScalaVersions := Seq("2.10.6", "2.11.10", "2.12.15","2.13.12", "3.0.2")
+crossScalaVersions := Seq("2.10.6", "2.11.12", "2.12.15","2.13.12", "3.0.2")
 
 version := "0.5.0-SNAPSHOT"