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>

routers/api/v1/repo/action.go

@@ -183,7 +183,7 @@ func (Action) DeleteSecret(ctx *context.APIContext) {
 	//   required: true
 	// responses:
 	//   "204":
-	//     description: delete one secret of the organization
+	//     description: delete one secret of the repository
 	//   "400":
 	//     "$ref": "#/responses/error"
 	//   "404":
@@ -531,6 +531,125 @@ func (Action) GetRegistrationToken(ctx *context.APIContext) {
 	shared.GetRegistrationToken(ctx, 0, ctx.Repo.Repository.ID)
 }
 
+// CreateRegistrationToken returns the token to register repo runners
+func (Action) CreateRegistrationToken(ctx *context.APIContext) {
+	// swagger:operation POST /repos/{owner}/{repo}/actions/runners/registration-token repository repoCreateRunnerRegistrationToken
+	// ---
+	// summary: Get a repository's actions runner registration token
+	// produces:
+	// - application/json
+	// parameters:
+	// - name: owner
+	//   in: path
+	//   description: owner of the repo
+	//   type: string
+	//   required: true
+	// - name: repo
+	//   in: path
+	//   description: name of the repo
+	//   type: string
+	//   required: true
+	// responses:
+	//   "200":
+	//     "$ref": "#/responses/RegistrationToken"
+
+	shared.GetRegistrationToken(ctx, 0, ctx.Repo.Repository.ID)
+}
+
+// ListRunners get repo-level runners
+func (Action) ListRunners(ctx *context.APIContext) {
+	// swagger:operation GET /repos/{owner}/{repo}/actions/runners repository getRepoRunners
+	// ---
+	// summary: Get repo-level runners
+	// produces:
+	// - application/json
+	// parameters:
+	// - name: owner
+	//   in: path
+	//   description: owner of the repo
+	//   type: string
+	//   required: true
+	// - name: repo
+	//   in: path
+	//   description: name of the repo
+	//   type: string
+	//   required: true
+	// responses:
+	//   "200":
+	//     "$ref": "#/definitions/ActionRunnersResponse"
+	//   "400":
+	//     "$ref": "#/responses/error"
+	//   "404":
+	//     "$ref": "#/responses/notFound"
+	shared.ListRunners(ctx, 0, ctx.Repo.Repository.ID)
+}
+
+// GetRunner get an repo-level runner
+func (Action) GetRunner(ctx *context.APIContext) {
+	// swagger:operation GET /repos/{owner}/{repo}/actions/runners/{runner_id} repository getRepoRunner
+	// ---
+	// summary: Get an repo-level runner
+	// produces:
+	// - application/json
+	// parameters:
+	// - name: owner
+	//   in: path
+	//   description: owner of the repo
+	//   type: string
+	//   required: true
+	// - name: repo
+	//   in: path
+	//   description: name of the repo
+	//   type: string
+	//   required: true
+	// - name: runner_id
+	//   in: path
+	//   description: id of the runner
+	//   type: string
+	//   required: true
+	// responses:
+	//   "200":
+	//     "$ref": "#/definitions/ActionRunner"
+	//   "400":
+	//     "$ref": "#/responses/error"
+	//   "404":
+	//     "$ref": "#/responses/notFound"
+	shared.GetRunner(ctx, 0, ctx.Repo.Repository.ID, ctx.PathParamInt64("runner_id"))
+}
+
+// DeleteRunner delete an repo-level runner
+func (Action) DeleteRunner(ctx *context.APIContext) {
+	// swagger:operation DELETE /repos/{owner}/{repo}/actions/runners/{runner_id} repository deleteRepoRunner
+	// ---
+	// summary: Delete an repo-level runner
+	// produces:
+	// - application/json
+	// parameters:
+	// - name: owner
+	//   in: path
+	//   description: owner of the repo
+	//   type: string
+	//   required: true
+	// - name: repo
+	//   in: path
+	//   description: name of the repo
+	//   type: string
+	//   required: true
+	// - name: runner_id
+	//   in: path
+	//   description: id of the runner
+	//   type: string
+	//   required: true
+	// responses:
+	//   "204":
+	//     description: runner has been deleted
+	//   "400":
+	//     "$ref": "#/responses/error"
+	//   "404":
+	//     "$ref": "#/responses/notFound"
+	shared.DeleteRunner(ctx, 0, ctx.Repo.Repository.ID, ctx.PathParamInt64("runner_id"))
+}
+
 var _ actions_service.API = new(Action)
 
 // Action implements actions_service.API