Update scala to 2.12.17 and sbt-coverage to 2.0.4 (#593)

* Update scala to 2.12.17 and sbt-coverage to 2.0.4

* Update plugins.sbt

Co-authored-by: Jose Gutiérrez de Ory <jose.gutierrez@47deg.com>

build.sbt

@@ -1,5 +1,5 @@
 ThisBuild / scalaVersion       := "2.13.8"
-ThisBuild / crossScalaVersions := Seq("2.12.16", "2.13.8")
+ThisBuild / crossScalaVersions := Seq("2.12.17", "2.13.8")
 ThisBuild / organization       := "com.47deg"
 
 addCommandAlias("ci-test", "fix --check; +mdoc; testCovered")

project/plugins.sbt

@@ -1,3 +1,6 @@
+ThisBuild / libraryDependencySchemes ++= Seq(
+  "org.scala-lang.modules" %% "scala-xml" % VersionScheme.Always
+)
 addSbtPlugin("ch.epfl.scala"                     % "sbt-scalafix"             % "0.10.3")
 addSbtPlugin("com.47deg"                         % "sbt-microsites"           % "1.3.2")
 addSbtPlugin("com.alejandrohdezma"               % "sbt-codecov"              % "0.2.1")
@@ -15,6 +18,6 @@ addSbtPlugin("de.heikoseeberger"                 % "sbt-header"               %
 addSbtPlugin("io.github.davidgregory084"         % "sbt-tpolecat"             % "0.4.1")
 addSbtPlugin("org.scalameta"                     % "sbt-mdoc"                 % "2.3.5")
 addSbtPlugin("org.scalameta"                     % "sbt-scalafmt"             % "2.4.6")
-addSbtPlugin("org.scoverage"                     % "sbt-scoverage"            % "2.0.0")
+addSbtPlugin("org.scoverage"                     % "sbt-scoverage"            % "2.0.4")
 addSbtPlugin("pl.project13.scala"                % "sbt-jmh"                  % "0.4.3")
 addSbtPlugin("com.47deg"                        %% "sbt-hood-plugin"          % "0.3.0")