Add custom headers to the gh action

[Utwo]

Is it possible to add a new input to the GitHub action that will include a new header in all API requests? In our case, we are hosting the digger backend on our K8s cluster. We don't use an ingress to expose it to the public, but instead, we are using Cloudflare ztna tunnel to access that service. To access the digger backend service from the GitHub action, we need to append some Cloudflare headers to the request.

Additionally, I believe this is also true when basic authentication is set on the gateway or at the backend level.