cloud-image-builder

### Code Refactoring

- [[`6e904e4`](https://cnb.cool/Anyexyz/cloud-image-builder/-/commit/6e904e492814ddb6e828535120cf92378000334d)] **-** 将基础镜像从Ubuntu 22.04切换为Alpine并更新相关配置 (Anye 19:27)
- [[`c9401bf`](https://cnb.cool/Anyexyz/cloud-image-builder/-/commit/c9401bffd30df69048bd873f7eb068a4ec9db99d)] **-** 将默认构建环境从main切换为alpine并更新相关描述 (Anye 17:57)


### Others

- [[`fdfdb9e`](https://cnb.cool/Anyexyz/cloud-image-builder/-/commit/fdfdb9e207fea21226b6cbef5c17c9e45e676a41)] **-** alpine配置 (Anye 19:25)