Bump Microsoft.AspNetCore.SpaProxy from 6.0.20 to 7.0.9

Bumps [Microsoft.AspNetCore.SpaProxy](https://github.com/dotnet/aspnetcore) from 6.0.20 to 7.0.9.
- [Release notes](https://github.com/dotnet/aspnetcore/releases)
- [Changelog](https://github.com/dotnet/aspnetcore/blob/main/docs/ReleasePlanning.md)
- [Commits](dotnet/aspnetcore@v6.0.20...v7.0.9)

---
updated-dependencies:
- dependency-name: Microsoft.AspNetCore.SpaProxy
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

samples/Directory.Packages.props

@@ -8,7 +8,7 @@
     <PackageVersion Include="Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore" Version="6.0.20" />
     <PackageVersion Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="6.0.20" />
     <PackageVersion Include="Microsoft.AspNetCore.Identity.UI" Version="6.0.20" />
-    <PackageVersion Include="Microsoft.AspNetCore.SpaProxy" Version="6.0.20" />
+    <PackageVersion Include="Microsoft.AspNetCore.SpaProxy" Version="7.0.9" />
     <PackageVersion Include="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" Version="4.1.0" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.Sqlite" Version="6.0.20" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.Tools" Version="6.0.20" />