Update sbt, scripted-plugin to 1.12.9 in series/0.24

http4s-steward[bot] · http4s-steward[bot] · commit 00a884fc8037 · 2026-04-07T05:52:23.000Z
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.12.8
+sbt.version=1.12.9
