Update scala-library, scala-reflect to 2.12.21 (#692)

typelevel-steward[bot] · web-flow · commit b9026bdb2626 · 2026-02-26T05:36:22.000-10:00
diff --git a/build.sbt b/build.sbt
@@ -1,6 +1,6 @@
 import com.typesafe.tools.mima.core._
 import Dependencies._
-val scala212 = "2.12.20"
+val scala212 = "2.12.21"
 val scala213 = "2.13.16"
 val scala3 = "3.3.6"
 
