ci/hubble: Move Hubble tests to new Hubble helpers
ci/hubble: Move Hubble tests to new Hubble helpers

This switches the Hubble CI skeleton to use the new `--follow` based
helpers and JSONPath filters.

Signed-off-by: Sebastian Wicki <db043b2055cb3a47b2eb0b5aebf4e114a8c24a5a@isovalent.com>

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