API: Add service account routes to the swagger (#52398)

* API: Add service account routes to the swagger

pkg/api/dtos/apikey.go

@@ -7,10 +7,14 @@ import (
 	"github.com/grafana/grafana/pkg/services/accesscontrol"
 )
 
+// swagger:model
 type NewApiKeyResult struct {
-	ID   int64  `json:"id"`
+	// example: 1
+	ID int64 `json:"id"`
+	// example: grafana
 	Name string `json:"name"`
-	Key  string `json:"key"`
+	// example: glsa_yscW25imSKJIuav8zF37RZmnbiDvB05G_fcaaf58a
+	Key string `json:"key"`
 }
 
 type ApiKeyDTO struct {