Check for depedencies

I think with the PRs it is likely that there is going to need to be some lock files needed. I seemed to have missed this. Got this error:

`Dependencies lock file is not found in /home/runner/work/whisper-slides/whisper-slides. Supported file patterns: package-lock.json,npm-shrinkwrap.json,yarn.lock`

Perhaps this needs to be called out more loudly in the documentation? Maybe there's a script that could be run to check that things are ready for the accessibility-scanner? Not sure.

Maybe just better error messages?

首先检查与报告的 missing-lock-file 消息相关的文档，以及依赖检查或错误处理的入口点。该 issue 未指定文件或测试，并且没有确定所需的修改方向，是在文档、readiness 脚本和更好的错误消息之间做出选择；完成的要求是根据报告的错误决定其中一个方向并进行验证。

由索引模型根据 Issue 内容生成。