daemon: Factour out UpdateSecLabels
daemon: Factour out UpdateSecLabels

This is a pure cleanup, no code changes.

Signed-off-by: André Martins <bc9800b9d52a24cce72a73dd528afed53f10e5fc@cilium.io>

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