Update sbt to 1.5.3 (#268)

scala-steward · web-flow · commit 44a7fe870e2d · 2021-06-07T11:45:19.000-07:00
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.5.2
+sbt.version=1.5.3
