Bump Microsoft.AspNetCore.Http from 2.2.2 to 2.3.0

Bumps [Microsoft.AspNetCore.Http](https://github.com/dotnet/aspnetcore) from 2.2.2 to 2.3.0.
- [Release notes](https://github.com/dotnet/aspnetcore/releases)
- [Changelog](https://github.com/dotnet/aspnetcore/blob/main/docs/ReleasePlanning.md)
- [Commits](https://github.com/dotnet/aspnetcore/commits)

---
updated-dependencies:
- dependency-name: Microsoft.AspNetCore.Http
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

tests/Tgstation.Server.Api.Tests/Tgstation.Server.Api.Tests.csproj

@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Http" Version="2.2.2" />
+    <PackageReference Include="Microsoft.AspNetCore.Http" Version="2.3.0" />
   </ItemGroup>
 
   <ItemGroup>