Update sbt to 1.4.6

scala-steward · scala-steward · commit 4b623d2fb1e6 · 2020-12-24T11:18:40.000+01:00
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.4.0
+sbt.version=1.4.6
