Update release to v6.0.85 #2774

Job	Run time
multiple-arch-aarch64	8m 8s
cygwin64-cache	3m 42s
multiple-arch-armv7	7m 51s
utest-regression-blackbox-test	6m 18s
fast	1s
cygwin64	12m 42s
build-ubuntu18	3m 3s
build-centos7	3m 22s
build-ubuntu16	2m 21s
build-cross-aarch64	8m 46s
build-cross-arm	7m 18s
build-ubuntu20	3m 19s
coverage	4m 54s
multiple-arch-amd64	2m 2s
test-done	1s
	1h 13m 48s

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