Bump decorator from 4.0.4 to 4.3.0
Bump decorator from 4.0.4 to 4.3.0

Bumps [decorator](https://github.com/micheles/decorator) from 4.0.4 to 4.3.0.
- [Release notes](https://github.com/micheles/decorator/releases)
- [Changelog](https://github.com/micheles/decorator/blob/master/CHANGES.md)
- [Commits](https://github.com/micheles/decorator/commits/4.3.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
DemocracyClub/yournextrepresentative,DemocracyClub/yournextrepresentative,DemocracyClub/yournextrepresentative