Bump Microsoft.AspNetCore from 2.2.0 to 2.3.0 (#912)

Bumps [Microsoft.AspNetCore](https://github.com/dotnet/aspnetcore) from 2.2.0 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
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

WebAPI/LearningHub.Nhs.API/LearningHub.Nhs.Api.csproj

@@ -32,7 +32,7 @@
 		<PackageReference Include="LearningHub.Nhs.Caching" Version="2.0.0" />
 		<PackageReference Include="LearningHub.Nhs.Models" Version="3.0.45" />
 		<PackageReference Include="Microsoft.ApplicationInsights.AspNetCore" Version="2.21.0" />
-		<PackageReference Include="Microsoft.AspNetCore" Version="2.2.0" />
+		<PackageReference Include="Microsoft.AspNetCore" Version="2.3.0" />
 		<PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="6.0.36" />
 		<PackageReference Include="Microsoft.Extensions.Caching.Redis" Version="2.2.0" />
 		<PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="6.0.18" />