Update sbt to 1.9.9 (mockito#526)

scala-steward · web-flow · commit c0a106837e03 · 2024-06-24T21:40:13.000+02:00
[skip ci]
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.9.7
+sbt.version=1.9.9
