[BugFix: ZSTACK-43046]  Add param 'remote-keep-amount' for 'DumpMysqlCmd'  to ensure that the database can be backed up correctly
[BugFix: ZSTACK-43046]
 Add param 'remote-keep-amount' for 'DumpMysqlCmd'
 to ensure that the database can be backed up correctly

zstackio/zstack-utility,zstackio/zstack-utility,zstackio/zstack-utility