[FLINK-36693][state/forst] Implement checkpoint/restore for ForStSync… #1226

Job	Run time
Pre-compile Checks / Basic QA	11m 20s
Default (Java 11) / Compile	10m 14s
Default (Java 11) / Test packaging/licensing	37m 5s
Default (Java 11) / Test (module: core)	29m 58s
Default (Java 11) / E2E (group 1)	1h 27m 33s
Default (Java 11) / Test (module: python)	31m 38s
Default (Java 11) / E2E (group 2)	1h 46m 53s
Default (Java 11) / Test (module: table)	36m 38s
Default (Java 11) / Test (module: connect)	22m 27s
Default (Java 11) / Test (module: tests)	36m 28s
Default (Java 11) / Test (module: misc)	28m 15s
	7h 18m 29s

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