[FLINK-36892][Test] Use record processor in operator test harness #293

Job	Run time
Default (Java 11) / Compile	9m 12s
Pre-compile Checks / Basic QA	8m 24s
Default (Java 11) / Test packaging/licensing	39m 17s
Default (Java 11) / E2E (group 1)	1h 30m 35s
Default (Java 11) / Test (module: core)	30m 59s
Default (Java 11) / E2E (group 2)	1h 57m 13s
Default (Java 11) / Test (module: python)	28m 52s
Default (Java 11) / Test (module: table)	33m 46s
Default (Java 11) / Test (module: connect)	21m 17s
Default (Java 11) / Test (module: tests)	37m 33s
Default (Java 11) / Test (module: misc)	23m 37s
	7h 20m 45s

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