Update sbt-mdoc to 2.8.2 in series/3.x

Author: typelevel-steward[bot]

project/plugins.sbt

@@ -5,7 +5,7 @@ addSbtPlugin("org.typelevel" % "sbt-typelevel" % "0.8.4")
 addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.18.2")
 addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.5.9")
 addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.4.8")
-addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.7.2")
+addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.8.2")
 addSbtPlugin("com.lightbend.sbt" % "sbt-java-formatter" % "0.8.0")
 addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.13.1")
 addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.14.3")