Update sbt-site to 1.7.0

Author: scala-steward

project/plugins.sbt

@@ -2,7 +2,7 @@ addSbtPlugin("com.github.sbt" % "sbt-github-actions" % "0.22.0")
 addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "1.1.3")
 addSbtPlugin("com.typesafe.sbt" % "sbt-ghpages" % "0.6.3")
 addSbtPlugin("com.typesafe.sbt" % "sbt-git" % "1.0.2")
-addSbtPlugin("com.typesafe.sbt" % "sbt-site" % "1.4.1")
+addSbtPlugin("com.github.sbt" % "sbt-site" % "1.7.0")
 addSbtPlugin("org.scoverage" % "sbt-coveralls" % "1.3.11")
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.2")
 addSbtPlugin("org.scoverage" % "sbt-scoverage" % "2.0.0")