fix 修复 oss未使用租户 拼接租户id null问题

ruoyi-common/ruoyi-common-oss/src/main/java/org/dromara/common/oss/factory/OssFactory.java

@@ -48,7 +48,10 @@ public class OssFactory {
         }
         OssProperties properties = JsonUtils.parseObject(json, OssProperties.class);
         // 使用租户标识避免多个租户相同key实例覆盖
-        String key = properties.getTenantId() + ":" + configKey;
+        String key = configKey;
+        if (StringUtils.isNotBlank(properties.getTenantId())) {
+            key = properties.getTenantId() + ":" + configKey;
+        }
         OssClient client = CLIENT_CACHE.get(key);
         // 客户端不存在或配置不相同则重新构建
         if (client == null || !client.checkPropertiesSame(properties)) {