Update sbt to 1.3.2 (#23)

scala-steward · pjfanning · commit ef9a5c028f77 · 2019-09-21T09:48:18.000+01:00
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.3.0
+sbt.version=1.3.2
