Merge pull request #489 from scala-steward/update/scala-library-2.13.18

Update scala-library to 2.13.18

Author: satabin

build.sbt

@@ -1,7 +1,7 @@
 import com.typesafe.tools.mima.core._
 
 val scala212 = "2.12.20"
-val scala213 = "2.13.16"
+val scala213 = "2.13.18"
 val scala3 = "3.3.7"
 
 val scalatestVersion = "3.2.19"