Update sbt to 1.5.2 (#329)

scala-steward · web-flow · commit bcfc2cdf6aab · 2021-05-10T08:24:08.000+02:00
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.5.1
+sbt.version=1.5.2
