Update sbt to 1.4.7 (#486)

scala-steward · web-flow · commit e1f39320d9c2 · 2021-01-31T21:08:31.000-08:00
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.4.6
+sbt.version=1.4.7
