Update sbt to 1.9.6

scala-steward · mergify[bot] · commit b16b076fed7e · 2023-09-18T23:47:09.000Z
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.9.4
+sbt.version=1.9.6
