build(deps): bump minimist and mkdirp in /packages/wxa-compiler-sass

Bumps [minimist](https://github.com/minimistjs/minimist), [minimist](https://github.com/minimistjs/minimist) and [mkdirp](https://github.com/isaacs/node-mkdirp). These dependencies needed to be updated together.

Updates `minimist` from 1.2.5 to 1.2.8
- [Release notes](https://github.com/minimistjs/minimist/releases)
- [Changelog](https://github.com/minimistjs/minimist/blob/main/CHANGELOG.md)
- [Commits](minimistjs/minimist@v1.2.5...v1.2.8)

Updates `minimist` from 1.2.0 to 1.2.8
- [Release notes](https://github.com/minimistjs/minimist/releases)
- [Changelog](https://github.com/minimistjs/minimist/blob/main/CHANGELOG.md)
- [Commits](minimistjs/minimist@v1.2.5...v1.2.8)

Updates `mkdirp` from 0.5.1 to 0.5.5
- [Release notes](https://github.com/isaacs/node-mkdirp/releases)
- [Changelog](https://github.com/isaacs/node-mkdirp/blob/main/CHANGELOG.md)
- [Commits](isaacs/node-mkdirp@0.5.1...v0.5.5)

---
updated-dependencies:
- dependency-name: minimist
  dependency-type: indirect
- dependency-name: minimist
  dependency-type: indirect
- dependency-name: mkdirp
  dependency-type: indirect
...

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