Bump tomlkit from 0.7.1 to 0.7.2
Bump tomlkit from 0.7.1 to 0.7.2

Bumps [tomlkit](https://github.com/sdispater/tomlkit) from 0.7.1 to 0.7.2.
- [Release notes](https://github.com/sdispater/tomlkit/releases)
- [Changelog](https://github.com/sdispater/tomlkit/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sdispater/tomlkit/compare/0.7.1...0.7.2)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
amolenaar/gaphor,amolenaar/gaphor