[hotfix] Remove requiremenet for java 8 in docs (#25785) #174

Job	Run time
Default (Java 11) / Compile	26m 12s
Pre-compile Checks / Basic QA	5m 49s
Default (Java 11) / Test packaging/licensing	35m 41s
Default (Java 11) / Test (module: core)	31m 13s
Default (Java 11) / E2E (group 1)	1h 45m 6s
Default (Java 11) / Test (module: python)	28m 25s
Default (Java 11) / E2E (group 2)	2h 39m 19s
Default (Java 11) / Test (module: table)	31m 7s
Default (Java 11) / Test (module: connect)	21m 36s
Default (Java 11) / Test (module: tests)	37m 15s
Default (Java 11) / Test (module: misc)	29m 5s
	8h 30m 48s

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