Update sbt, scripted-plugin to 1.11.6 (#102)

Co-authored-by: lunatech-scala-steward[bot] <166295259+lunatech-scala-steward[bot]@users.noreply.github.com>

Author: lunatech-scala-steward[bot]

project/build.properties

@@ -1 +1 @@
-sbt.version=1.11.5
+sbt.version=1.11.6