fix sbt artifact name (#488)

Author: jxnu-liguobin

build.sbt

@@ -75,7 +75,7 @@ lazy val core = (project in file("core"))
 
 lazy val scala2macros = project
   .settings(
-    name := "scala2macros",
+    name := "scala2-macros",
     scalaVersion := scala213,
     crossScalaVersions := scala2,
     libraryDependencies ++= Dependencies.scalaLogging(scalaVersion.value, false),