[Feature][KafkaSource]Add customize the row separator. #12986

Job	Run time
License header	1m 27s
Code style	38s
changes	2m 45s
Dead links	3m 3s
Sanity check results	1s
unit-test (8, ubuntu-latest)	5m 34s
unit-test (8, windows-latest)	13m 10s
unit-test (11, ubuntu-latest)	5m 28s
unit-test (11, windows-latest)	7m 34s
updated-modules-integration-test-part-1 (8, ubuntu-latest)	41m 10s
updated-modules-integration-test-part-1 (11, ubuntu-latest)	40m 51s
updated-modules-integration-test-part-2 (8, ubuntu-latest)	13s
updated-modules-integration-test-part-2 (11, ubuntu-latest)	10s
all-connectors-it-2	0s
all-connectors-it-1	0s
all-connectors-it-3	0s
all-connectors-it-4	0s
all-connectors-it-6	0s
engine-v2-it	0s
Dependency licenses	0s
transform-v2-it-part-2	0s
updated-modules-integration-test-part-4 (8, ubuntu-latest)	19s
updated-modules-integration-test-part-4 (11, ubuntu-latest)	14s
updated-modules-integration-test-part-3 (8, ubuntu-latest)	12s
updated-modules-integration-test-part-3 (11, ubuntu-latest)	16s
transform-v2-it-part-1	0s
all-connectors-it-5	0s
all-connectors-it-7	0s
jdbc-connectors-it-part-2	0s
jdbc-connectors-it-part-1	0s
kafka-connector-it	0s
jdbc-connectors-it-part-3	0s
rocketmq-connector-it	0s
	2h 3m 5s

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