Update sbt to 1.9.9 (lightbend-labs#430)

scala-steward · web-flow · commit cd7313a95db9 · 2024-04-19T09:58:56.000-07:00
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.9.8
+sbt.version=1.9.9
