change: Add label for description and change format to OCI

module-deploy/deploy.gradle.kts

@@ -1,3 +1,5 @@
+import com.google.cloud.tools.jib.api.buildplan.ImageFormat
+
 plugins {
     id("twomartens.jib")
 }
@@ -35,6 +37,8 @@ jib {
         jvmFlags = listOf("-XX:+UseContainerSupport",
                 "-XX:MaxRAMPercentage=75.0")
         user = "nobody"
+        format = ImageFormat.OCI
+        labels = mapOf("org.opencontainers.image.description" to "Container image of the TSW Timetable backend")
     }
     outputPaths.digest = "${layout.buildDirectory.get().asFile}/jib-image.digest"
 }