Update sbt, scripted-plugin to 1.12.15 (#348)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

project/build.properties

@@ -1 +1 @@
-sbt.version=1.12.14
+sbt.version=1.12.15