Update mdoc_2.13, sbt-mdoc to 2.2.17

Author: scala-steward

project/plugins.sbt

@@ -1,5 +1,5 @@
 addSbtPlugin("ch.epfl.lamp" % "sbt-dotty" % "0.5.2")
-addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.2.16")
+addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.2.17")
 addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.9.25")
 
 ThisBuild / libraryDependencies ++= Seq(