Adopt GHA-Scala-Library-Release-Workflow

https://github.com/guardian/gha-scala-library-release-workflow gives
us an automated way to publish releases of this library without needing
individual Sonatype credentials for each developer!

See also the list of Guardian projects that have adopted this workflow
so far:

guardian/gha-scala-library-release-workflow#20

.github/workflows/release.yml

@@ -0,0 +1,12 @@
+name: Release
+
+on:
+  workflow_dispatch:
+
+jobs:
+  release:
+    uses: guardian/gha-scala-library-release-workflow/.github/workflows/reusable-release.yml@main
+    permissions: { contents: write, pull-requests: write }
+    secrets:
+      SONATYPE_PASSWORD: ${{ secrets.AUTOMATED_MAVEN_RELEASE_SONATYPE_PASSWORD }}
+      PGP_PRIVATE_KEY: ${{ secrets.AUTOMATED_MAVEN_RELEASE_PGP_SECRET }}

build.sbt

@@ -1,4 +1,5 @@
 import sbtrelease.ReleaseStateTransformations._
+import sbtversionpolicy.withsbtrelease.ReleaseVersion
 
 name:="cross-platform-navigation"
 
@@ -19,51 +20,13 @@ Test / unmanagedResourceDirectories += baseDirectory.value / "json"
 
 enablePlugins(BuildInfoPlugin)
 
-def listJsonFiles(file: File) : List[File] = {
-  if(file.isDirectory) {
-    file.listFiles().toList.flatMap(listJsonFiles)
-  } else {
-    List(file)
-  }
-}
-
-def listJsonFilesInJsonDir: List[(File, String)] = {
-
-  val jsonFilesDir = file("json")
-  val jsonDir = jsonFilesDir.getAbsoluteFile.toPath.getParent
-
-  listJsonFiles(jsonFilesDir).map {
-    file => file -> jsonDir.relativize(file.getAbsoluteFile.toPath).toString
-  }
-}
-
-publishTo := sonatypePublishToBundle.value
-publishMavenStyle := true
-Test / publishArtifact := false
-pomIncludeRepository := {_ => false}
 description := "Provides scala representation of the navigation menus for the www.theguardian.com and guardian apps"
 
-pomExtra in Global := {
-  <url>https://github.com/guardian/cross-platform-navigation</url>
-    <developers>
-      <developer>
-        <id>@guardian</id>
-        <name>The guardian</name>
-        <url>https://github.com/guardian</url>
-      </developer>
-    </developers>
-}
-
-
-//PgpPublis
 organization := "com.gu"
-licenses := Seq("Apache v2" -> url("http://www.apache.org/licenses/LICENSE-2.0.html"))
-scmInfo := Some(ScmInfo(
-  url("https://github.com/guardian/cross-platform-navigation"),
-  "scm:git:[email protected]:guardian/cross-platform-navigation.git"
-))
+licenses := Seq(License.Apache2)
 scalacOptions ++= Seq("-deprecation", "-unchecked", "-release:11")
 releaseCrossBuild := true
+releaseVersion := ReleaseVersion.fromAggregatedAssessedCompatibilityWithLatestRelease().value
 releaseProcess := Seq(
   checkSnapshotDependencies,
   inquireVersions,
@@ -72,11 +35,8 @@ releaseProcess := Seq(
   setReleaseVersion,
   commitReleaseVersion,
   tagRelease,
-  releaseStepCommandAndRemaining("+publishSigned"),
-  releaseStepCommand("sonatypeBundleRelease"),
   setNextVersion,
-  commitNextVersion,
-  pushChanges
+  commitNextVersion
 )
 
 Test/testOptions += Tests.Argument(

project/build.properties

@@ -1 +1 @@
-sbt.version=1.9.0
+sbt.version=1.9.8

project/plugins.sbt

@@ -1,8 +1,8 @@
-addSbtPlugin("com.github.sbt" % "sbt-release" % "1.1.0")
-
 addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.11.0")
 
-addSbtPlugin("com.github.sbt" % "sbt-pgp" % "2.2.1")
+addSbtPlugin("com.github.sbt" % "sbt-release" % "1.1.0")
+
+addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.10.0")
 
-addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.9.21")
+addSbtPlugin("ch.epfl.scala" % "sbt-version-policy" % "3.2.0")
 

version.sbt

@@ -1 +1 @@
-ThisBuild / version := "1.3-SNAPSHOT"
+ThisBuild / version := "1.3.0-SNAPSHOT"