Update cri-tools to v1.18.0-100-g2bf7674 for Go 1.15 compatibility
Update cri-tools to v1.18.0-100-g2bf7674 for Go 1.15 compatibility

full diff: https://github.com/kubernetes-sigs/cri-tools/compare/16911795a3c33833fa0ec83dac1ade3172f6989e...2bf7674922a424337d7580a08166d666c6802818

Signed-off-by: Sebastiaan van Stijn <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@gone.nl>

containerd/containerd,estesp/containerd,estesp/containerd,vdemeester/containerd,dmcgowan/containerd,mikebrow/containerd,thaJeztah/containerd,thaJeztah/containerd,containerd/containerd,dmcgowan/containerd,mikebrow/containerd,vdemeester/containerd