output retryafter for secondary rate limit

src/octokit-client.ts

@@ -25,10 +25,11 @@ export const throttleOptions = {
       return true
     }
   },
-  onSecondaryRateLimit: (_, options) => {
+  onSecondaryRateLimit: (retryAfter, options) => {
     core.warning(
       `Hit secondary rate limit for request ${options.method} ${options.url}`
     )
+    core.warning(`Requests may be retried after ${retryAfter} seconds.`)
   }
 }