fix:修复获取临时连接的兼容

# vendor/league/flysystem/src/Filesystem.php
public function temporaryUrl(string $path, DateTimeInterface $expiresAt, array $config = []): string
    {
        $generator = $this->temporaryUrlGenerator ?? $this->adapter;

        if ($generator instanceof TemporaryUrlGenerator) {
            return $generator->temporaryUrl(
                $this->pathNormalizer->normalizePath($path),
                $expiresAt,
                $this->config->extend($config)
            );
        }

        throw UnableToGenerateTemporaryUrl::noGeneratorConfigured($path);
    }

这里的$generator instanceof TemporaryUrlGenerator会检查

overtrue / flysystem-cos

fix:修复获取临时连接的兼容 #42