Update dotnet monorepo to v9

Author: renovate[bot]

src/DotnetDispatcher/DotnetDispatcher.csproj

@@ -24,7 +24,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="8.0.2" />
+		<PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="9.0.8" />
 	</ItemGroup>
 	<ItemGroup>
 		<ProjectReference Include="..\DotnetDispatcher.Generator\DotnetDispatcher.Generator.csproj" PrivateAssets="All" />

test/DotnetDispatcher.Tests/DotnetDispatcher.Tests.csproj

@@ -13,7 +13,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
+		<PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="9.0.8" />
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
 		<PackageReference Include="System.Net.Http" Version="4.3.4" />
 		<PackageReference Include="xunit" Version="2.9.3" />