chore(main): release 6.84.0 #10203

Job	Run time
units (8)	3m 31s
units-with-multiplexed-session (11)	3m 47s
units (11)	3m 36s
units-with-multiplexed-session (17)	3m 50s
units-with-multiplexed-session (8)	4m 1s
units (17)	3m 21s
windows	7m 7s
units-with-multiplexed-session (21)	3m 49s
units (21)	3m 24s
clirr	1m 40s
dependencies (17)	1m 37s
javadoc	2m 32s
lint	1m 40s
	43m 55s

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