Update sbt, scripted-plugin to 1.12.9

scala-steward · scala-steward · commit 935fc7ca0aaf · 2026-04-08T00:33:35.000Z
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.12.6
+sbt.version=1.12.9
