update deps & add validation for Flush API when agent is Read Only #496

Job	Run time
dump-contexts-to-log	5s
dump-contexts-to-log	5s
E2E test (Stream CRUD) under index management jobs	8m 42s
E2E test (Stream CRUD) under index management jobs	8m 42s
E2E test (Stream CRUD: skip strict exist check)	2m 47s
E2E test (Stream CRUD: skip strict exist check)	2m 47s
E2E test (Stream CRUD)	8m 47s
E2E test (Stream CRUD)	8m 47s
E2E test (Stream CRUD) for operator	1m 18s
E2E test (Stream CRUD) for operator	1m 9s
E2E test (Jobs)	6m 40s
E2E test (Jobs)	6m 40s
E2E test (Stream CRUD) with mirror	10m 30s
E2E test (Stream CRUD) with mirror	10m 30s
E2E test (Multi-APIs CRUD)	5m 14s
E2E test (Multi-APIs CRUD)	5m 14s
E2E test (Stream CRUD) with read replica	9m 51s
E2E test (Stream CRUD) with read replica	9m 51s
Slack notification	0s
Slack notification	0s
	1h 47m 39s

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