pkg/k8s: set schema version to 1.22.1
pkg/k8s: set schema version to 1.22.1

We don't need to update the schema version every time the schema is
changed, we only the to be sure the schema version is updated before a
release is done. Although the schema version was bumped 2 times in the
1.9 development cycle we only need to make sure it is set to 1.22.1
before we cut the first release candidate.

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

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