Actions Runner rest api (#33873)

Implements runner apis based on
https://docs.github.com/en/rest/actions/self-hosted-runners?apiVersion=2022-11-28#list-self-hosted-runners-for-an-organization

- Add Post endpoints for registration-token, google/go-github revealed
this as problem
  - We should deprecate Get Endpoints, leaving them for compatibility
- Get endpoint of admin has api path /admin/runners/registration-token
that feels wrong, /admin/actions/runners/registration-token seems more
consistent with user/org/repo api
- Get Runner Api
- List Runner Api
- Delete Runner Api

- Tests admin / user / org / repo level endpoints

Related to #33750 (implements point 1 and 2)
Via needs discovered in #32461, this runner api is needed to allow
cleanup of runners that are deallocated without user interaction.

---------

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

services/actions/interface.go

@@ -25,4 +25,12 @@ type API interface {
 	UpdateVariable(*context.APIContext)
 	// GetRegistrationToken get registration token
 	GetRegistrationToken(*context.APIContext)
+	// CreateRegistrationToken get registration token
+	CreateRegistrationToken(*context.APIContext)
+	// ListRunners list runners
+	ListRunners(*context.APIContext)
+	// GetRunner get a runner
+	GetRunner(*context.APIContext)
+	// DeleteRunner delete runner
+	DeleteRunner(*context.APIContext)
 }