tests: enable additional externalTrafficPolicy=Local tests
tests: enable additional externalTrafficPolicy=Local tests

... given kube-proxy-free setup supports them now, lets run these. Also
add tests from third node to make sure they fail to a node that has no
local backend.

Signed-off-by: Daniel Borkmann <3d0f3b9ddcacec30c4008c5e030e6c13a478cb4f@iogearbox.net>

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