CODEOWNERS: fix owner assignment for hubble related helm charts
CODEOWNERS: fix owner assignment for hubble related helm charts

PR #13259 move helm chart files around and the CODEOWNERS file was not
updated accordingly.

Signed-off-by: Robin Hahling <042b6757f29293f4affc22596084b908e3917891@gw-computing.net>

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