Update scala-library to 2.12.18

Author: typelevel-steward[bot]

.github/workflows/ci.yml

@@ -28,13 +28,13 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        scala: [3.3.0, 2.12.17, 2.13.11]
+        scala: [3.3.0, 2.12.18, 2.13.11]
         java: [temurin@17]
         project: [rootJS, rootJVM, rootNative]
         exclude:
           - scala: 3.3.0
             os: macos-latest
-          - scala: 2.12.17
+          - scala: 2.12.18
             os: macos-latest
     runs-on: ${{ matrix.os }}
     steps:

build.sbt

@@ -10,7 +10,7 @@ ThisBuild / startYear := Some(2013)
 
 val NewScala = "2.13.11"
 
-ThisBuild / crossScalaVersions := Seq("3.3.0", "2.12.17", NewScala)
+ThisBuild / crossScalaVersions := Seq("3.3.0", "2.12.18", NewScala)
 ThisBuild / tlVersionIntroduced := Map("3" -> "3.0.3")
 
 ThisBuild / githubWorkflowOSes := Seq("ubuntu-latest", "macos-latest")