store built packages in archive tree instead of repository

package/share/ahriman/settings/ahriman.ini

@@ -44,9 +44,11 @@ triggers[] = ahriman.core.report.ReportTrigger
 triggers[] = ahriman.core.upload.UploadTrigger
 triggers[] = ahriman.core.gitremote.RemotePushTrigger
 triggers[] = ahriman.core.housekeeping.LogsRotationTrigger
+triggers[] = ahriman.core.housekeeping.ArchiveRotationTrigger
 ; List of well-known triggers. Used only for configuration purposes.
 triggers_known[] = ahriman.core.gitremote.RemotePullTrigger
 triggers_known[] = ahriman.core.gitremote.RemotePushTrigger
+triggers_known[] = ahriman.core.housekeeping.ArchiveRotationTrigger
 triggers_known[] = ahriman.core.housekeeping.LogsRotationTrigger
 triggers_known[] = ahriman.core.report.ReportTrigger
 triggers_known[] = ahriman.core.upload.UploadTrigger

package/share/ahriman/settings/ahriman.ini.d/00-housekeeping.ini

@@ -1,3 +1,7 @@
+[archive]
+; Keep amount of last built packages in archive. 0 means keep all packages
+keep_built_packages = 1
+
 [logs-rotation]
 ; Keep last build logs for each package
 keep_last_logs = 5