Bump org.rocksdb:rocksdbjni from 9.7.3 to 9.8.4 #913

Job	Run time
build (ubuntu-latest, 17, Client, false)	6m 10s
build (ubuntu-latest, 17, Server, false)	16m 42s
build (ubuntu-latest, 17, Core, false)	9m 21s
build (ubuntu-latest, 17, External, false)	10m 5s
build (ubuntu-latest, 17, Check-Updated-License-Files, false)	3m 50s
build (ubuntu-latest, 17, Integration-Test, false)	5m 11s
build (ubuntu-latest, 21, Client, false)	5m 25s
build (ubuntu-latest, 21, Server, false)	17m 18s
build (ubuntu-latest, 21, Core, false)	9m 37s
build (ubuntu-latest, 21, External, false)	10m 36s
build (ubuntu-latest, 21, Check-Updated-License-Files, false)	4m 18s
build (ubuntu-latest, 21, Integration-Test, false)	5m 14s
	1h 43m 47s

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