Request: create guardrail for `litmus-infrastructure-k8s` charms

charmhub requests
1

Hi team,

Could you please add a track guardrail to the below observability charm?

^(?:\d+(?:.\d+){0,2}(?:-[A-Za-z0-9]+(?:-[A-Za-z0-9]+)*)?|[A-Za-z]+)$
2

Hi,

This has been created, as requested.

Br,

Odysseus