Bump Microsoft.Extensions.DependencyInjection.Abstractions and Microsoft.NETFramework.ReferenceAssemblies

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

Updates `Microsoft.Extensions.DependencyInjection.Abstractions` from 9.0.3 to 9.0.4
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v9.0.3...v9.0.4)

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.DependencyInjection.Abstractions
  dependency-version: 9.0.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: Microsoft.NETFramework.ReferenceAssemblies
  dependency-version: 1.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Akismet.Net/Akismet.Net.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <Product>Akismet.Net</Product>
@@ -22,7 +22,7 @@
     <DefineConstants>NETSTANDARD;NETSTANDARD2_0</DefineConstants>
   </PropertyGroup>
   <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0'">
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="9.0.3" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="9.0.4" />
     <PackageReference Include="Microsoft.Extensions.Http" Version="8.0.1" />
   </ItemGroup>