chore(deps): bump minimatch in /examples/8-top-level-discriminator (#761)

Bumps [minimatch](https://github.com/isaacs/minimatch) from 3.0.4 to 3.1.2.
- [Release notes](https://github.com/isaacs/minimatch/releases)
- [Commits](isaacs/minimatch@v3.0.4...v3.1.2)

---
updated-dependencies:
- dependency-name: minimatch
  dependency-type: indirect
...

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Author: dependabot[bot]