[FLINK-36701][cdc-runtime] Add steps to get and emit schemaManager's latest evolvedSchema when SinkDataWriterOperator handles FlushEvent #47

Job	Run time
License Check	3m 49s
Migration Tests / data_stream_migration_test (8, 1.19.1)	11m 27s
Migration Tests / migration_test_ut (8, 1.19.1)	4m 55s
Migration Tests / data_stream_migration_test (8, 1.20.0)	11m 54s
Migration Tests / migration_test_ut (8, 1.20.0)	5m 39s
Migration Tests / pipeline_migration_test (8, 1.19.1)	7m 25s
Source E2E Tests / compile_and_test (8, 1.19.1)	25m 54s
Migration Tests / pipeline_migration_test (8, 1.20.0)	6m 57s
Source E2E Tests / compile_and_test (8, 1.20.0)	26m 39s
Pipeline E2E Tests (1-Parallelism) / compile_and_test (8, 1.19.1)	32m 6s
Pipeline E2E Tests (4-Parallelism) / compile_and_test (8, 1.19.1)	29m 39s
Pipeline E2E Tests (1-Parallelism) / compile_and_test (8, 1.20.0)	30m 23s
Pipeline E2E Tests (4-Parallelism) / compile_and_test (8, 1.20.0)	29m 53s
Unit Tests (core) / compile_and_test (8, generic)	5m 45s
Unit Tests (db2) / compile_and_test (8, generic)	5m 47s
Unit Tests (mongodb6) / compile_and_test (8, generic)	5m 48s
Unit Tests (mongodb7) / compile_and_test (8, generic)	5m 48s
Unit Tests (mysql) / compile_and_test (8, generic)	5m 47s
Unit Tests (oceanbase) / compile_and_test (8, generic)	5m 28s
Unit Tests (oracle) / compile_and_test (8, generic)	5m 46s
Unit Tests (postgres) / compile_and_test (8, generic)	5m 47s
Unit Tests (pipeline_connectors) / compile_and_test (8, generic)	5m 49s
Unit Tests (sqlserver) / compile_and_test (8, generic)	5m 45s
Unit Tests (tidb) / compile_and_test (8, generic)	3m 28s
Unit Tests (vitess) / compile_and_test (8, generic)	3m 16s
	4h 50m 54s

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