Update sbt to 1.4.9 (#214)

scala-steward · web-flow · commit d2dafa609dc6 · 2021-03-13T12:08:19.000-08:00
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.4.8
+sbt.version=1.4.9
