Bump sbt-scala-module to 3.4.1

Fixes tagged releases being versioned as SNAPSHOTs: sbt-dynver 5.1.1
made GitRef.isTag a type test, which the plugin's dynverGitDescribeOutput
rewrite defeated.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

Author: lrytz

project/plugins.sbt

@@ -1,4 +1,4 @@
-addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "3.4.0")
+addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "3.4.1")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.3.2")
 addSbtPlugin("org.portable-scala" % "sbt-scala-native-crossproject" % "1.3.2")
 addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.22.0")