Update sbt to 1.9.6 (#224)

scala-steward · web-flow · commit b2d141086dec · 2023-09-20T16:57:16.000+02:00
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.9.4
+sbt.version=1.9.6
