Bump aenum from 1.4.5 to 2.1.2
Bump aenum from 1.4.5 to 2.1.2

Bumps [aenum](https://bitbucket.org/stoneleaf/aenum) from 1.4.5 to 2.1.2.
- [Commits](https://bitbucket.org/stoneleaf/aenum/branches/compare/2.1.2..1.4.5)

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