[FLINK-32088][checkpoint] Space control in file merging #129

Job	Run time
Default (Java 8) / Compile	37m 52s
Pre-compile Checks / Basic QA	9m 9s
Default (Java 8) / Test packaging/licensing	34m 7s
Default (Java 8) / Test (module: core)	37m 26s
Default (Java 8) / E2E (group 1)	2h 4m 38s
Default (Java 8) / Test (module: python)	32m 7s
Default (Java 8) / E2E (group 2)	2h 27m 29s
Default (Java 8) / Test (module: table)	34m 3s
Default (Java 8) / Test (module: connect)	20m 41s
Default (Java 8) / Test (module: tests)	47m 32s
Default (Java 8) / Test (module: misc)	46m 55s
	9h 31m 59s

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