Update sbt to 1.6.0

scala-steward · xuwei-k · commit e56a3af29e16 · 2021-12-27T18:59:49.000+09:00
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.5.8
+sbt.version=1.6.0
