feat(api): Add GET /repos/{owner}/{repo}/actions/workflows/{workflow_id}/runs (#37196)

- Add GET /repos/{owner}/{repo}/actions/workflows/{workflow_id}/runs
endpoint, matching the
https://docs.github.com/en/rest/actions/workflow-runs?apiVersion=2026-03-10#list-workflow-runs-for-a-workflow

---------

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: bircni <bircni@icloud.com>

services/convert/action_test.go

@@ -121,7 +121,7 @@ func TestToActionWorkflowRun_UsesTriggerEvent(t *testing.T) {
 	run.Event = "push"
 	run.TriggerEvent = "schedule"
 
-	apiRun, err := ToActionWorkflowRun(t.Context(), run, nil)
+	apiRun, err := ToActionWorkflowRun(t.Context(), run, nil, false)
 	require.NoError(t, err)
 	assert.Equal(t, "schedule", apiRun.Event)
 }