Merge pull request #3863 from scala-steward/update/doctest-runtime-0.12.5

Update doctest-runtime, sbt-doctest to 0.12.5

Author: mergify[bot]

project/plugins.sbt

@@ -3,7 +3,7 @@ addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.13.1")
 addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.11.2")
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.6")
 addSbtPlugin("com.github.cb372" % "sbt-explicit-dependencies" % "0.3.1")
-addSbtPlugin("io.github.sbt-doctest" % "sbt-doctest" % "0.12.4")
+addSbtPlugin("io.github.sbt-doctest" % "sbt-doctest" % "0.12.5")
 addSbtPlugin("com.github.sbt" % "sbt-native-packager" % "1.11.7")
 addSbtPlugin("com.github.sbt" % "sbt-header" % "5.11.0")
 addSbtPlugin("org.typelevel" % "sbt-tpolecat" % "0.5.3")