Upgrade dependencies to avoid repo.scala-sbt.org

project/plugins.sbt

@@ -6,18 +6,18 @@ resolvers += Resolver.sonatypeRepo("releases") // to more quickly obtain paradox
 // which is used by plugin "org.kohsuke" % "github-api" % "1.68"
 resolvers += Resolver.jcenterRepo
 
-addSbtPlugin("com.typesafe.sbt" % "sbt-multi-jvm" % "0.4.0")
+addSbtPlugin("com.github.sbt" % "sbt-multi-jvm" % "0.6.0")
 addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "1.1.3")
 addSbtPlugin("org.scalariform" % "sbt-scalariform" % "1.8.3")
 addSbtPlugin("com.github.sbt" % "sbt-dynver" % "5.0.1")
 addSbtPlugin("com.github.sbt" % "sbt-unidoc" % "0.5.0")
 addSbtPlugin("com.thoughtworks.sbt-api-mappings" % "sbt-api-mappings" % "3.0.2")
 addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.4.7")
 addSbtPlugin("net.virtual-void" % "sbt-dependency-graph" % "0.10.0-RC1") // for advanced PR validation features
-addSbtPlugin("io.spray" % "sbt-boilerplate" % "0.6.1")
+addSbtPlugin("com.github.sbt" % "sbt-boilerplate" % "0.7.0")
 addSbtPlugin("com.lightbend.sbt" % "sbt-publish-rsync" % "0.2")
 addSbtPlugin("com.lightbend.sbt" % "sbt-bill-of-materials" % "1.0.2")
-addSbtPlugin("com.lightbend.akka" % "sbt-paradox-akka" % "0.53")
+addSbtPlugin("com.lightbend.akka" % "sbt-paradox-akka" % "0.54")
 addSbtPlugin("de.heikoseeberger" % "sbt-header" % "5.10.0")
 addSbtPlugin("net.bzzt" % "sbt-reproducible-builds" % "0.31")
 addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.11.1")