chore(main): release 6.86.0 #10530

Job	Run time
units (8)	3m 21s
dependencies (17)	1m 14s
units (11)	2m 54s
units (17)	3m 1s
units-with-multiplexed-session (8)	3m 27s
units (21)	3m 3s
units-with-multiplexed-session (11)	3m 18s
windows	7m 9s
units-with-multiplexed-session (17)	2m 59s
units-with-multiplexed-session (21)	3m 21s
clirr	1m 6s
javadoc	2m 32s
lint	1m 10s
	38m 35s

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