[Feature] 集成测试环境建设与维护

1.当前SCA某个组件版本升级以后，不太容易测试该组件对SCA中其他组件依赖的冲突影响情况，这一块能力对于提高项目整体测试效率具有比较重要意义。
2.当前社区采用的[方案](https://www.yuque.com/spring-cloud-alibaba/xgu1l3/dbmig3)，该方案测试用户不太全面。

Start by reading the linked Yuque方案 and then inspect the repository's existing integration-test setup. Determine how component upgrades and dependency conflicts are currently exercised, and define an environment that covers a broader set of test users. Done should mean the integration environment is established, maintainable, and can reveal conflicts among SCA components.

Written by the indexing model from the issue text.