Bump System.Linq.Dynamic.Core from 1.2.0 to 1.2.1

Bumps [System.Linq.Dynamic.Core](https://github.com/zzzprojects/System.Linq.Dynamic.Core) from 1.2.0 to 1.2.1.
- [Release notes](https://github.com/zzzprojects/System.Linq.Dynamic.Core/releases)
- [Changelog](https://github.com/zzzprojects/System.Linq.Dynamic.Core/blob/master/CHANGELOG.md)
- [Commits](zzzprojects/System.Linq.Dynamic.Core@v1.2.0...v1.2.1)

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

Rnwood.Smtp4dev/Rnwood.Smtp4dev.csproj

@@ -30,7 +30,7 @@
 		<PackageReference Include="Rnwood.SmtpServer" Version="3.1.0-ci0579" />
 		<PackageReference Include="Portable.BouncyCastle" Version="1.8.6.7" />
 		<PackageReference Include="System.Data.SQLite" Version="1.0.113.1" />
-		<PackageReference Include="System.Linq.Dynamic.Core" Version="1.2.0" />
+		<PackageReference Include="System.Linq.Dynamic.Core" Version="1.2.1" />
 		<PackageReference Include="VueCliMiddleware" Version="3.1.1" />
 	</ItemGroup>