Update scala3-library to 3.3.7

http4s-steward[bot] · http4s-steward[bot] · commit 7076e912b40b · 2025-11-25T04:32:54.000Z
diff --git a/build.sbt b/build.sbt
@@ -1,6 +1,6 @@
 val scala213 = "2.13.16"
 
-val scala3 = "3.3.6"
+val scala3 = "3.3.7"
 
 lazy val root = (project in file("."))
   .settings(
