ci/gha: bump golangci-lint-action from 5 to 6 #6052

Job	Run time
cross-i386	1m 23s
cross-i386 (runc_nodmz)	1m 12s
test (ubuntu-20.04, 1.20.x, rootless, -race)	6m 35s
test (ubuntu-20.04, 1.20.x, rootless)	6m 11s
test (ubuntu-20.04, 1.20.x, -race)	7m 30s
test (ubuntu-20.04, 1.20.x)	6m 25s
test (ubuntu-20.04, 1.21.x, rootless, -race)	6m 25s
test (ubuntu-20.04, 1.21.x, rootless)	6m 2s
test (ubuntu-20.04, 1.21.x, -race)	7m 13s
test (ubuntu-20.04, 1.21.x)	6m 21s
test (ubuntu-20.04, 1.21.x, criu-dev)	6m 58s
test (ubuntu-22.04, 1.20.x, rootless, -race)	10m 25s
test (ubuntu-22.04, 1.20.x, rootless)	10m 0s
test (ubuntu-22.04, 1.20.x, -race)	8m 38s
test (ubuntu-22.04, 1.20.x)	7m 45s
test (ubuntu-22.04, 1.21.x, rootless, -race)	10m 15s
test (ubuntu-22.04, 1.21.x, rootless)	10m 14s
test (ubuntu-22.04, 1.21.x, -race)	8m 49s
test (ubuntu-22.04, 1.21.x)	7m 47s
test (ubuntu-22.04, 1.21.x, runc_nodmz)	7m 41s
test (ubuntu-22.04, 1.21.x, criu-dev)	8m 11s
test (actuated-arm64-6cpu-8gb, 1.21.x, rootless)	11m 19s
test (actuated-arm64-6cpu-8gb, 1.21.x)	6m 49s
	2h 50m 8s

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