Release 2.9.1

Signed-off-by: Alexander Brandes <mc.cache@web.de>

build.gradle.kts

@@ -52,7 +52,7 @@ ext {
     }
 }
 
-version = String.format("%s-%s", rootVersion, buildNumber)
+version = String.format("%s", rootVersion)
 
 if (!project.hasProperty("gitCommitHash")) {
     apply(plugin = "org.ajoberstar.grgit")