fix: Implicit conversion from float to int loses precision

src/throttle/TokenBucket.php

@@ -33,12 +33,12 @@ public function allowRequest(string $key, float $micronow, int $max_requests, in
 
         if ($token_left < 1) {
             $tmp = (int) ceil($duration / $max_requests);
-            $this->wait_seconds = $tmp - ($micronow - $last_time) % $tmp;
+            $this->wait_seconds = $tmp - intval(($micronow - $last_time)) % $tmp;
             return false;
         }
         $this->cur_requests = $max_requests - $token_left;
         $cache->set($key, $micronow, $duration);
         $cache->set($assist_key, $token_left - 1, $duration);
         return true;
     }
-}
+}