test/helpers: add runtime test deadlock check
test/helpers: add runtime test deadlock check

If a test fails, also check to see if there are any logs signifying that a
deadlock has occurred in Cilium.

Signed-off by: Ian Vernon <ian@cilium.io>

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