Update dependency sbt/sbt to v1.12.9

renovate[bot] · web-flow · commit c13a93d799cd · 2026-04-15T12:50:23.000Z
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.7.1
+sbt.version=1.12.9
