Update sbt to 1.6.1

scala-steward · xuwei-k · commit 92f4d42f74a8 · 2021-12-30T18:56:30.000+09:00
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.6.0
+sbt.version=1.6.1
