doc: Fix non-critical CVE-2017-18342:
doc: Fix non-critical CVE-2017-18342:

In PyYAML before 4.1, the yaml.load() API could execute arbitrary code. In
other words, yaml.safe_load is not used.

PyYAML is only used in the documentation building chain. This is not security relevant for Cilium.

Signed-off-by: Thomas Graf <5f50a84c1fa3bcff146405017f36aec1a10a9e38@cilium.io>

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