Update sbt to 1.12.6

gu-scala-steward-public-repos[bot] · aug24 · commit 2749b2e45809 · 2026-03-17T11:35:41.000Z
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.12.5
+sbt.version=1.12.6
