Update sbt to 1.9.4

scala-steward-bot · xuwei-k · commit 03d9db621593 · 2023-08-25T08:03:16.000+09:00
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.9.3
+sbt.version=1.9.4
