Tracking issue for cover SchedulerV3 test in the test-infra

[3AceShowHand]

SchedulerV3 is a new scheduler implementation for TiCDC, which aims to reduce the latency in the rolling upgrade scenario, also works on normal table scheduling. This issue tracks tasks for make it covered by more cases.

Network chaos

• [x] enlarge real_time_sync and incremental_sync workload
• [x] Periodically DDL test be more complex, cover Create / Drop / Truncate
• [x] random cdc node crash
• [x] cdc owner / other node network latency
• [x] cdc owner / other node network loss 100%
• [x] cdc node / pd network latency / loss

Table Scheduling

• [ ] manual move table / rebalance

[3AceShowHand]

add cdc_network_latency case

[3AceShowHand]

add cdc_network_loss case

[3AceShowHand]

add cdc_network_latency_pd case