Update dependency org.scala-lang.modules:scala-xml to v2.4.0

Author: renovate[bot]

build.sbt

@@ -13,7 +13,7 @@ lazy val V =
     val protoc =
       "3.17.3" // the oldest protoc version with Apple M1 support, see https://github.com/scalapb/ScalaPB/issues/1024#issuecomment-860126568
     val coursier = "2.1.9"
-    val scalaXml = "2.1.0"
+    val scalaXml = "2.4.0"
     val moped = "0.2.0"
     val gradle = "7.0"
     val scala213 = "2.13.13"