br: add error into retry list when backup (#1487)

* add error into retry list when backup

Signed-off-by: joccau <zak.zhao@pingcap.com>

* maintain test case

Signed-off-by: joccau <zak.zhao@pingcap.com>

---------

Signed-off-by: joccau <zak.zhao@pingcap.com>

br: Ignore ddl jobs with empty query or blacklist type when exec rest…

…ore (#1480)

lightning: evaluate all generated columns even if they are virtual (#…

…1407) (#1417)

[cherry-pick] restore: fix failed to retry grpc errors(tidb#27423) (#…

…1438)

[cherry-pick] backup: more detailed TiKV error message(tidb#27567) (#…

…1444)

lightning: check and restore pd scheduler even if our task failed (#1336

) (#1422)

lightning: check and restore pd scheduler even if our task failed (#1336

) (#1422)

lightning: better estimate of the max-open-files (#1414) (#1427)

web: mute the alert (#1431)

lightning: fix int handle overflow and add retry for create schema (#…

…1294) (#1307)