[FLINK-39409][connect/postgres] Support tables without primary key for incremental snapshot #2374

Job	Run time
License Check	1m 39s
Pipeline Unit Tests / test (11, generic, doris, elasticsearch, fluss, hudi, iceberg, kafka, maxcompute, mysql-pipeline,...	2m 51s
Source Unit Tests / test (11, generic, oracle, sqlserver)	40m 4s
Common Unit Tests 2.x / test (11, 2.2.0, core)	13m 44s
Source Unit Tests / test (11, generic, db2, mongodb)	40m 2s
Source Unit Tests / test (11, generic, mysql-source)	40m 4s
Source Unit Tests 2.x / test (11, 2.2.0, mysql-source)	40m 3s
Source Unit Tests 2.x / test (11, 2.2.0, postgres-source, oceanbase-source, tidb, vitess)	2m 41s
Pipeline E2E Tests (1-Parallelism) / test (11, 1.20.3, pipeline_e2e)	2m 51s
Source E2E Tests / test (11, 1.20.3, source_e2e)	3m 1s
Source Unit Tests / test (11, generic, postgres-source, oceanbase-source, tidb, vitess)	2m 1s
Source Unit Tests 2.x / test (11, 2.2.0, oracle, sqlserver)	39m 20s
Source Unit Tests 2.x / test (11, 2.2.0, db2, mongodb)	34m 19s
Common Unit Tests / test (11, generic, core)	13m 35s
Pipeline Connectors Unit Tests 2.x / test (11, 2.2.0, doris, elasticsearch, fluss, iceberg, kafka, maxcompute, mysql-pipeline, oceanba...	1m 59s
Pipeline E2E Tests 2.x (4-Parallelism) / test (11, 2.2.0, pipeline_e2e)	3m 7s
Pipeline E2E Tests 2.x (1-Parallelism) / test (11, 2.2.0, pipeline_e2e)	3m 14s
Pipeline E2E Tests (4-Parallelism) / test (11, 1.20.3, pipeline_e2e)	2m 24s
	4h 46m 59s

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