Update scala-library to 2.12.19

.github/workflows/test.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        scala: [ 2.13.4, 2.12.17 ]
+        scala: [ 2.13.4, 2.12.19 ]
     steps:
       - name: Checkout
         uses: actions/checkout@v2

build.sbt

@@ -7,8 +7,8 @@ lazy val baseSettings = Seq(
   name := "treadle",
   organization := "edu.berkeley.cs",
   version := "1.6-SNAPSHOT",
-  scalaVersion := "2.12.17",
-  crossScalaVersions := Seq("2.13.10", "2.12.17"),
+  scalaVersion := "2.12.19",
+  crossScalaVersions := Seq("2.13.10", "2.12.19"),
   // enables using control-c in sbt CLI
   cancelable in Global := true,
   resolvers ++= Seq(

src/test/scala/treadle/primops/ShlShrDshlDshr.scala

@@ -165,7 +165,7 @@ class ShlShrDshlDshr extends AnyFreeSpec with Matchers with LazyLogging {
   "Dshr should work for pathological edge cases" in {
     def dshrIntFirrtl(width: Int): String = {
       s"""
-         |;buildInfoPackage: chisel3, version: 3.5-SNAPSHOT, scalaVersion: 2.12.17, sbtVersion: 1.3.10
+         |;buildInfoPackage: chisel3, version: 3.5-SNAPSHOT, scalaVersion: 2.12.19, sbtVersion: 1.3.10
          |circuit ShiftTestInt :
          |  module ShiftTestInt :
          |    input clock : Clock