Update scala3-staging to 3.5.1

Author: scala-steward-bot

build.sbt

@@ -4,7 +4,7 @@ import sbtcrossproject.CrossPlugin.autoImport.crossProject
 
 val Scala212 = "2.12.20"
 val Scala213 = "2.13.15"
-val Scala3 = "3.3.3"
+val Scala3 = "3.5.1"
 val scalatestVersion = "3.2.19"
 
 val isScala3 = Def.setting(