Merge pull request #160 from cucumber/renovate/com.eed3si9n-sbt-projectmatrix-0.x

Update dependency com.eed3si9n:sbt-projectmatrix to v0.7.0

Author: gaeljw

project/plugins.sbt

@@ -1,5 +1,5 @@
 // Cross compilation matrix
-addSbtPlugin("com.eed3si9n" % "sbt-projectmatrix" % "0.6.0")
+addSbtPlugin("com.eed3si9n" % "sbt-projectmatrix" % "0.7.0")
 
 // Scalafmt (formatter)
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.2")