Update scala-library to 2.13.16

Author: aiven-scala-steward[bot]

.github/workflows/ci.yml

@@ -25,7 +25,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.13]
+        scala: [2.13.16]
         java: [temurin@11]
     runs-on: ${{ matrix.os }}
     steps:
@@ -86,7 +86,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.13]
+        scala: [2.13.16]
         java: [temurin@11]
     runs-on: ${{ matrix.os }}
     steps:

build.sbt

@@ -1,7 +1,7 @@
 import com.jsuereth.sbtpgp.PgpKeys.publishSigned
 import com.lightbend.paradox.apidoc.ApidocPlugin.autoImport.apidocRootPackage
 
-val scala213 = "2.13.13"
+val scala213 = "2.13.16"
 
 ThisBuild / scalaVersion         := scala213
 ThisBuild / organization         := "aiven.io"