vagrant: bump vagrant image
vagrant: bump vagrant image

Each build contains:

- Bump of cached Istio container images

net-next build also contains latest bpf tree on track for 5.7:

- Fixes for BPF TPROXY

Signed-off-by: Joe Stringer <16a9a54ddf4259952e3c118c763138e83693d7fd@cilium.io>

tgraf/cilium,cilium/cilium,cilium-team/cilium,tgraf/cilium,michi-covalent/cilium,tklauser/cilium,cilium/cilium,michi-covalent/cilium,michi-covalent/cilium,cilium/cilium,tgraf/cilium,tklauser/cilium,michi-covalent/cilium,tklauser/cilium,tgraf/cilium,cilium-team/cilium,michi-covalent/cilium,tklauser/cilium,tgraf/cilium,cilium/cilium,tklauser/cilium,tgraf/cilium,cilium/cilium