Update version of scala-xml used to 2.x

[guizmaii]

Hi,

The Scala community has made an effort to update the version of scala-xml from 1.x to 2.x in all sbt plugins (See sbt/sbt#7075)
It seems that this plugin is still using it.
I experienced a compatibility issue when I tried to update some plugins in zio-quill, which is using sbt-scalariform.

[normana400]

the scala-xml 1.x dependency also clashes with sbt-scoverage (which becomes a problem with scala 2.12.12 and newer as the scoverage plugin is dependant per increment of scala)

[tkaszuba]

the scala-xml 1.x dependency also clashes with sbt-scoverage (which becomes a problem with scala 2.12.12 and newer as the scoverage plugin is dependant per increment of scala)

Put this in your plugins.sbt file to work around this issue
libraryDependencySchemes += "org.scala-lang.modules" %% "scala-xml" % VersionScheme.Always

[normana400]

thats a good workaround, but the next step I think is an official upgrade.