Update scala-library to 2.12.18

Author: scala-steward

.github/workflows/ci.yml

@@ -28,7 +28,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.12.17, 2.13.10, 3.2.2]
+        scala: [2.12.18, 2.13.10, 3.2.2]
         java: [temurin@8]
         project: [rootJS, rootJVM, rootNative]
     runs-on: ${{ matrix.os }}

build.sbt

@@ -1,6 +1,6 @@
 import com.typesafe.tools.mima.core._
 
-val scala212 = "2.12.17"
+val scala212 = "2.12.18"
 val scala213 = "2.13.10"
 val scala3 = "3.2.2"