Add Wildberries product fetching and rate limiting functionality

internal/ozon/rate_limiter.go

@@ -50,7 +50,7 @@ func (t *RateLimitTransport) RoundTrip(req *http.Request) (*http.Response, error
 	waitTime, err := rateLimiterScript.Exec(ctx, *redis.Client, []string{clientId}, []string{
 		fmt.Sprintf("%d", now),
 		fmt.Sprintf("%d", int64(windowSize)),
-		fmt.Sprintf("%d", 50),
+		fmt.Sprintf("%d", rps),
 	}).ToInt64()
 	if err != nil {
 		return nil, fmt.Errorf("failed to execute rate limit script: %w", err)