Bump Microsoft.Extensions.Hosting and Microsoft.NETFramework.ReferenceAssemblies

Bumps [Microsoft.Extensions.Hosting](https://github.com/dotnet/runtime) and [Microsoft.NETFramework.ReferenceAssemblies](https://github.com/Microsoft/dotnet). These dependencies needed to be updated together.

Updates `Microsoft.Extensions.Hosting` from 9.0.1 to 9.0.3
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v9.0.1...v9.0.3)

Updates `Microsoft.NETFramework.ReferenceAssemblies` from 1.0.3 to 1.0.3
- [Commits](https://github.com/Microsoft/dotnet/commits)

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.Hosting
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: Microsoft.NETFramework.ReferenceAssemblies
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Akismet.Tests/Akismet.Tests.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
 	<PropertyGroup>
 		<TargetFrameworks>net9.0;net8.0;net6.0;net462</TargetFrameworks>
@@ -23,7 +23,7 @@
 			<PrivateAssets>all</PrivateAssets>
 		</PackageReference>
 		<ProjectReference Include="../Akismet.Net/Akismet.Net.csproj" />
-    <PackageReference Include="Microsoft.Extensions.Hosting" Version="9.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Hosting" Version="9.0.4" />
     <PackageReference Include="Xunit.DependencyInjection" Version="9.7.1" />
 	</ItemGroup>