docs: Update versions used in GKE pipeline
docs: Update versions used in GKE pipeline

Signed-off-by: Sebastian Wicki <db043b2055cb3a47b2eb0b5aebf4e114a8c24a5a@isovalent.com>

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