Setting version to 2.0.18

@rtyley using gha-scala-library-release-workflow · @rtyley using gha-scala-library-release-workflow · commit dc868f49cd3c · 2024-01-11T14:26:41.000Z
diff --git a/version.sbt b/version.sbt
@@ -1 +1 @@
-ThisBuild / version := "2.0.18-SNAPSHOT"
+ThisBuild / version := "2.0.18"
