chore: Add support for Scala 2.13.16 #14515

Job	Run time
windows-latest jdk-17 unit tests 1 / 2	8m 3s
Gradle MacOS integration	8m 7s
windows-latest jdk-17 unit tests 2 / 2	8m 3s
Sbt integration	8m 5s
macOS-latest jdk-17 unit tests 1 / 2	8m 9s
Maven integration	8m 4s
macOS-latest jdk-17 unit tests 2 / 2	8m 8s
ubuntu-latest jdk-17 unit tests 1 / 2	8m 11s
Gradle integration	8m 6s
ubuntu-latest jdk-17 unit tests 2 / 2	8m 7s
Scala CLI integration	8m 10s
Mill integration	8m 5s
Bazel integration	8m 7s
LSP integration tests	8m 7s
Scala cross tests	8m 8s
Formatting	35s
Scalafix and docs	3m 1s
Sbt-metals/scripted jdk11	2m 45s
sbt-metals/scripted (Sbt 2)	1m 33s
Scala javapc tests	1m 39s
Scala 2.11 cross tests	3m 57s
MiMa	40s
	2h 15m 50s

Provide feedback