Update sbt-twirl, twirl-api to 2.0.8 (#559)

Author: xerial-bot

project/plugins.sbt

@@ -3,7 +3,7 @@ ThisBuild / libraryDependencySchemes += "org.scala-lang.modules" %% "scala-xml"
 addSbtPlugin("com.github.sbt"          % "sbt-pgp"      % "2.3.1")
 addSbtPlugin("org.xerial.sbt"          % "sbt-sonatype" % "3.12.2")
 addSbtPlugin("org.scalameta"           % "sbt-scalafmt" % "2.3.4")
-addSbtPlugin("org.playframework.twirl" % "sbt-twirl"    % "2.0.7")
+addSbtPlugin("org.playframework.twirl" % "sbt-twirl"    % "2.0.8")
 addSbtPlugin("com.github.sbt"          % "sbt-dynver"   % "5.1.0")
 addSbtPlugin("org.scalameta"           % "sbt-scalafmt" % "2.5.4")