Update dependency bazel_skylib to v1.6.1 #780

Job	Run time
lint	21s
container_test (archlinux, true)	2m 26s
external_test (macos-13, latest, true)	8m 59s
container_test (archlinux, false)	2m 37s
abs_paths_test (true)	2m 17s
external_test (macos-13, latest, false)	7m 54s
abs_paths_test (false)	2m 8s
container_test (debian, true)	2m 21s
external_test (ubuntu-latest, latest, true)	7m 58s
sys_paths_test (true)	3m 25s
container_test (debian, false)	3m 6s
external_test (ubuntu-latest, latest, false)	7m 45s
sys_paths_test (false)	3m 15s
container_test (fedora, true)	2m 42s
test (macos-latest, 7.0.0, true)	2m 10s
container_test (fedora, false)	2m 23s
xcompile_test (true)	2m 18s
test (macos-latest, 7.0.0, false)	2m 17s
container_test (suse_leap, true)	3m 0s
xcompile_test (false)	1m 51s
test (macos-latest, latest, true)	1m 55s
test (macos-latest, latest, false)	2m 16s
test (ubuntu-latest, 7.0.0, true)	2m 20s
container_test (suse_leap, false)	3m 1s
test (ubuntu-latest, 7.0.0, false)	2m 23s
container_test (suse_tumbleweed, true)	2m 40s
test (ubuntu-latest, latest, true)	2m 11s
container_test (suse_tumbleweed, false)	2m 43s
test (ubuntu-latest, latest, false)	2m 13s
container_test (ubuntu_20_04, true)	2m 38s
container_test (ubuntu_20_04, false)	2m 33s
container_test (ubuntu_22_04, true)	2m 31s
container_test (ubuntu_22_04, false)	2m 19s
container_test (linux_sysroot, true)	2m 43s
container_test (linux_sysroot, false)	2m 31s
	1h 48m 10s

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