Update sbt to 1.5.3 (#283)

scala-steward · web-flow · commit 8ff9473c4c6b · 2021-06-07T11:44:49.000-07:00
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.5.2
+sbt.version=1.5.3
