test: Policies: Fix IPv6 HTTP private request
test: Policies: Fix IPv6 HTTP private request

The curl command wasn't properly formatting the IPv6 address, so this
command would always fail, even if it should be allowed. Fix it.

Signed-off-by: Joe Stringer <16a9a54ddf4259952e3c118c763138e83693d7fd@covalent.io>

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