Update sbt, scripted-plugin to 1.12.0 in series/0.5

http4s-steward[bot] · http4s-steward[bot] · commit b0f902245bc3 · 2026-01-05T04:53:14.000Z
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.11.7
+sbt.version=1.12.0
