Bump glob-parent and webpack

Bumps [glob-parent](https://github.com/gulpjs/glob-parent) to 5.1.2 and updates ancestor dependency [webpack](https://github.com/webpack/webpack). These dependencies need to be updated together.


Updates `glob-parent` from 5.1.1 to 5.1.2
- [Release notes](https://github.com/gulpjs/glob-parent/releases)
- [Changelog](https://github.com/gulpjs/glob-parent/blob/main/CHANGELOG.md)
- [Commits](gulpjs/glob-parent@v5.1.1...v5.1.2)

Updates `webpack` from 4.46.0 to 5.75.0
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v4.46.0...v5.75.0)

---
updated-dependencies:
- dependency-name: glob-parent
  dependency-type: indirect
- dependency-name: webpack
  dependency-type: direct:development
...

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Author: dependabot[bot]