test: use new image to clean up prior cilium state in upgrade test
test: use new image to clean up prior cilium state in upgrade test

Prior tests have been run with the latest Cilium image. Using the old one
for the initial cleanup is broken since it will not clean-up everything.

For example the 1.7 cleanup method will try to remove tc attached filters
with the name bpf_netdev.o, but for 1.8/latest they are names bpf_netdev_<dev>.o
which will then break connectivity after flushing all files from BPF fs as
tail call maps are purged which gets us into drop-all due to missed tail calls.

Run new (and old) to make sure there are no quirks from old version left behind
that the new one didn't catch.

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

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