[feat]: Implement gitea runner

[auggie-lahey]

Prerequisites

• I have searched for existing issues that already suggest this feature.

Describe the Feature Request

https://gitea.com/gitea/act_runner
as a user, i want to create runners, so that i can automate jobs.
It would be acceptable if this is an extra service OR runs inside the same gitea service.

Describe the Use Case

I have scripts and apps that i want to deploy/run from gitea using runners.

example 1: i can create start9 packages in my gitea repos and then deploy to github, but i want to build the s9pk on my s9 gitea

example 2: i have a script which connects to my start9 and automatically creates gitea mirrors of the applications of my phone that I have installed via obtanium.

example 3: any automation github actions/aws codepipeline/etc does, the runner does so i want to be able to use it.

Describe Preferred Solution

preferred as a seperate service since the docker container is already there and gitea can just be configured to run using that other service for separation (ie if a build script blows up, gitea isn't impacted)

Describe Alternatives

i just run these scripts/commands manually. I am working on getting the runner deployed on my s9 since i'm comfortable with other cicd tools, but new to gitea.

Anything else?

No response