[AB-199] adding build of sources and javadoc

fixing javadoc as various places
adding release plugin
adding developer connection to scm
updating release pipeline to new action versions

abstracto-application/scheduling/scheduling-impl/src/main/java/dev/sheldan/abstracto/scheduling/service/SchedulerStartupService.java

@@ -22,6 +22,7 @@ public class SchedulerStartupService {
 
     /**
      * Loads the job definitions from the database and schedules them, if the job does not exist yet.
+     * @param ctxStartEvt The event info from spring
      */
     @EventListener
     @Transactional(isolation = Isolation.SERIALIZABLE)