Bump Microsoft.EntityFrameworkCore.Design from 3.1.1 to 3.1.2
Bump Microsoft.EntityFrameworkCore.Design from 3.1.1 to 3.1.2

Bumps [Microsoft.EntityFrameworkCore.Design](https://github.com/dotnet/efcore) from 3.1.1 to 3.1.2.
- [Release notes](https://github.com/dotnet/efcore/releases)
- [Commits](https://github.com/dotnet/efcore/compare/v3.1.1...v3.1.2)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
mattgwagner/Battery-Commander,mattgwagner/Battery-Commander,mattgwagner/Battery-Commander,mattgwagner/Battery-Commander