[FLINK-39696][runtime] Use source partition for distributed flush eve… #2481

Job	Run time
Common Unit Tests 2.x / test (11, 2.2.0, core)	14m 24s
License Check	4m 44s
Common Unit Tests / test (11, generic, core)	13m 51s
Source Unit Tests / test (11, generic, oracle, sqlserver)	48m 40s
Pipeline Unit Tests / test (11, generic, doris, elasticsearch, fluss, hudi, iceberg, kafka, maxcompute, mysql-pipeline,...	1h 5m 18s
Source Unit Tests / test (11, generic, postgres-source, oceanbase-source, tidb, vitess)	59m 14s
Source Unit Tests / test (11, generic, mysql-source)	45m 50s
Source Unit Tests / test (11, generic, db2, mongodb)	44m 35s
Pipeline Connectors Unit Tests 2.x / test (11, 2.2.0, doris, elasticsearch, fluss, iceberg, kafka, maxcompute, mysql-pipeline, oceanba...	1h 2m 39s
Source E2E Tests / test (11, 1.20.3, source_e2e)	28m 52s
Source Unit Tests 2.x / test (11, 2.2.0, db2, mongodb)	34m 31s
Pipeline E2E Tests (1-Parallelism) / test (11, 1.20.3, pipeline_e2e)	1h 24m 2s
Pipeline E2E Tests (4-Parallelism) / test (11, 1.20.3, pipeline_e2e)	1h 22m 19s
Source Unit Tests 2.x / test (11, 2.2.0, oracle, sqlserver)	39m 12s
Source Unit Tests 2.x / test (11, 2.2.0, postgres-source, oceanbase-source, tidb, vitess)	45m 57s
Source Unit Tests 2.x / test (11, 2.2.0, mysql-source)	41m 40s
Pipeline E2E Tests 2.x (4-Parallelism) / test (11, 2.2.0, pipeline_e2e)	59m 40s
Pipeline E2E Tests 2.x (1-Parallelism) / test (11, 2.2.0, pipeline_e2e)	1h 4m 30s
	13h 59m 58s

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