build(deps-dev): bump flat-cache from 3.0.4 to 3.2.0 (#259)

Bumps [flat-cache](https://github.com/jaredwray/flat-cache) from 3.0.4 to 3.2.0.
- [Release notes](https://github.com/jaredwray/flat-cache/releases)
- [Changelog](https://github.com/jaredwray/flat-cache/blob/master/changelog.md)
- [Commits](https://github.com/jaredwray/flat-cache/compare/v3.0.4...v3.2.0)

---
updated-dependencies:
- dependency-name: flat-cache
  dependency-type: indirect
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>