Update sbt to 1.4.0 (#104)

scala-steward · web-flow · commit f6dad874fe95 · 2020-10-04T21:04:05.000-07:00
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.3.13
+sbt.version=1.4.0
