update runc binary to v1.1.6

release notes: https://github.com/opencontainers/runc/releases/tag/v1.1.6
full diff: https://github.com/opencontainers/runc/compare/v1.1.5...v1.1.6

This is the sixth patch release in the 1.1.z series of runc, which fixes
a series of cgroup-related issues.

Note that this release can no longer be built from sources using Go
1.16. Using a latest maintained Go 1.20.x or Go 1.19.x release is
recommended. Go 1.17 can still be used.

- systemd cgroup v1 and v2 drivers were deliberately ignoring UnitExist error
  from systemd while trying to create a systemd unit, which in some scenarios
  may result in a container not being added to the proper systemd unit and
  cgroup.
- systemd cgroup v2 driver was incorrectly translating cpuset range from spec's
  resources.cpu.cpus to systemd unit property (AllowedCPUs) in case of more
  than 8 CPUs, resulting in the wrong AllowedCPUs setting.
- systemd cgroup v1 driver was prefixing container's cgroup path with the path
  of PID 1 cgroup, resulting in inability to place PID 1 in a non-root cgroup.
- runc run/start may return "permission denied" error when starting a rootless
  container when the file to be executed does not have executable bit set for
  the user, not taking the CAP_DAC_OVERRIDE capability into account. This is
  a regression in runc 1.1.4, as well as in Go 1.20 and 1.20.1
- cgroup v1 drivers are now aware of misc controller.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit d0efca893b)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

hack/dockerfile/install/runc.installer

@@ -9,7 +9,7 @@ set -e
 # the containerd project first, and update both after that is merged.
 #
 # When updating RUNC_VERSION, consider updating runc in vendor.conf accordingly
-: "${RUNC_VERSION:=v1.1.5}"
+: "${RUNC_VERSION:=v1.1.6}"
 
 install_runc() {
 	RUNC_BUILDTAGS="${RUNC_BUILDTAGS:-"seccomp"}"