Update sbt to 1.5.8

scala-steward · xuwei-k · commit 03e78086f19b · 2021-12-22T19:45:05.000+09:00
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.5.7
+sbt.version=1.5.8
