tests: use 2 spaces for all indentation
tests: use 2 spaces for all indentation

Use two spaces instead of tabs consistently in helpers.bash

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

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