build(deps-dev): bump flatted from 3.1.1 to 3.2.0 (#2980)
build(deps-dev): bump flatted from 3.1.1 to 3.2.0 (#2980)

Bumps [flatted](https://github.com/WebReflection/flatted) from 3.1.1 to 3.2.0.
- [Release notes](https://github.com/WebReflection/flatted/releases)
- [Commits](https://github.com/WebReflection/flatted/compare/v3.1.1...v3.2.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>

Co-authored-by: dependabot-preview[bot] <6a4c1c4838f800d1998274cd5234e1f65c55e90c@users.noreply.github.com>
stryker-mutator/stryker,stryker-mutator/stryker,stryker-mutator/stryker