Build(deps): bump the aspire group across 1 directory with 2 updates

Bumps the aspire group with 2 updates in the / directory: [Aspire.Hosting.AppHost](https://github.com/dotnet/aspire) and [Aspire.Hosting.Testing](https://github.com/dotnet/aspire).


Updates `Aspire.Hosting.AppHost` from 8.2.1 to 9.0.0
- [Release notes](https://github.com/dotnet/aspire/releases)
- [Commits](https://github.com/dotnet/aspire/commits)

Updates `Aspire.Hosting.Testing` from 8.2.1 to 9.0.0
- [Release notes](https://github.com/dotnet/aspire/releases)
- [Commits](https://github.com/dotnet/aspire/commits)

---
updated-dependencies:
- dependency-name: Aspire.Hosting.AppHost
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: aspire
- dependency-name: Aspire.Hosting.Testing
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: aspire
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -3,8 +3,8 @@
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
   </PropertyGroup>
   <ItemGroup>
-    <PackageVersion Include="Aspire.Hosting.AppHost" Version="8.2.2"/>
-    <PackageVersion Include="Aspire.Hosting.Testing" Version="8.2.2"/>
+    <PackageVersion Include="Aspire.Hosting.AppHost" Version="9.0.0"/>
+    <PackageVersion Include="Aspire.Hosting.Testing" Version="9.0.0"/>
     <PackageVersion Include="coverlet.collector" Version="6.0.4"/>
     <PackageVersion Include="GitHubActionsTestLogger" Version="2.4.1"/>
     <PackageVersion Include="GitVersion.MsBuild" Version="6.1.0"/>