Update scala-library to 2.12.19 in series/1.x

Author: typelevel-steward[bot]

.github/workflows/ci.yml

@@ -28,7 +28,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [3.3.1, 2.12.18, 2.13.12]
+        scala: [3.3.1, 2.12.19, 2.13.12]
         java: [temurin@8]
         project: [rootJS, rootJVM, rootNative]
     runs-on: ${{ matrix.os }}

build.sbt

@@ -20,7 +20,7 @@ ThisBuild / tlBaseVersion := "1.5"
 ThisBuild / startYear := Some(2020)
 ThisBuild / developers += tlGitHubDev("djspiewak", "Daniel Spiewak")
 
-ThisBuild / crossScalaVersions := Seq("3.3.1", "2.12.18", "2.13.12")
+ThisBuild / crossScalaVersions := Seq("3.3.1", "2.12.19", "2.13.12")
 
 ThisBuild / tlVersionIntroduced := Map("3" -> "1.1.1")