Bump minimatch and recursive-readdir in /example

Bumps [minimatch](https://github.com/isaacs/minimatch) and [recursive-readdir](https://github.com/jergason/recursive-readdir). These dependencies needed to be updated together.

Updates `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)

Updates `recursive-readdir` from 2.2.2 to 2.2.3
- [Release notes](https://github.com/jergason/recursive-readdir/releases)
- [Changelog](https://github.com/jergason/recursive-readdir/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jergason/recursive-readdir/commits/v2.2.3)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]