Ling Jin

* cdc-4 upgrade first, 15:01:55 ~ 15:03:27 * cdc-3 upgrade later, 15:03:27 ~ 15:04:58 [cdc-3-s.log](https://github.com/pingcap/tiflow/files/9268403/cdc-3-s.log) [cdc-4-s.log](https://github.com/pingcap/tiflow/files/9268404/cdc-4-s.log)

/run-all-tests

/run-verify-ci

/merge

/run-all-tests

/run-integration-test /run-kafka-integration-test /run-dm-integration-test /run-dm-compatibility-test

add `cdc_network_latency` case

add `cdc_network_loss` case

add `cdc_network_latency_pd` case

/merge