Merge pull request #135 from sourcegraph/renovate/com.geirsson-sbt-ci-release-1.x

Update dependency com.geirsson:sbt-ci-release to v1.5.7

Author: olafurpg

project/plugins.sbt

@@ -1,5 +1,5 @@
 addSbtPlugin("org.scalameta" % "sbt-native-image" % "0.3.0")
-addSbtPlugin("com.geirsson" % "sbt-ci-release" % "1.5.5")
+addSbtPlugin("com.geirsson" % "sbt-ci-release" % "1.5.7")
 addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.10.0")
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.3.4")
 addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.2.19")