fix gpg (#118)

* Update sbt-ci-release to 1.5.12
* Set version-scheme to early-semver
* Remove useless setup-gpg since ubuntu already comes with mpg

Author: agilelab-tmnd1991

.github/workflows/ci.yml

@@ -17,7 +17,6 @@ jobs:
       - uses: coursier/setup-action@v1
         with:
           jvm: zulu:8.0.402
-      - uses: olafurpg/setup-gpg@v3
       - run: ./make.sh && ./publish.sh
         env:
           SBT_NATIVE_CLIENT: false

project/Settings.scala

@@ -69,6 +69,7 @@ object Settings {
     javacOptions ++= javacOptionsVersion(scalaVersion.value),
     scalacOptions ++= scalacOptionsVersion(scalaVersion.value),
     Compile / doc / scalacOptions ++= scalaDocOptionsVersion(scalaVersion.value),
+    versionScheme := Some("early-semver"),
     useCoursier := false,
     developers := List(
       Developer("amurgia", "Antonio Murgia", "antonio.murgia@agilelab.it", url("https://github.com/tmnd1991")),

project/plugin.sbt

@@ -1,2 +1,2 @@
-addSbtPlugin("org.scalastyle"  %% "scalastyle-sbt-plugin" % "1.0.0")
-addSbtPlugin("com.geirsson"     % "sbt-ci-release"        % "1.5.3")
+addSbtPlugin("org.scalastyle" %% "scalastyle-sbt-plugin" % "1.0.0")
+addSbtPlugin("com.github.sbt"  % "sbt-ci-release"        % "1.5.12")