docs: fix typo in upgrade docs for bpf-map-dynamic-size-ratio
docs: fix typo in upgrade docs for bpf-map-dynamic-size-ratio

As suggested by Joe during the review of #10780

Suggested-by: Joe Stringer <16a9a54ddf4259952e3c118c763138e83693d7fd@cilium.io>
Signed-off-by: Tobias Klauser <9249c549618448e4c699e8032ba6c7f0d7fd4b7f@distanz.ch>

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