Bump the dotnet group with 3 updates (#4514)

Bumps Aspire.Hosting.AppHost from 9.4.1 to 9.4.2
Bumps CommunityToolkit.Aspire.Hosting.Dapr from 9.7.1 to 9.7.2
Bumps Microsoft.Extensions.ServiceDiscovery from 9.4.1 to 9.4.2

---
updated-dependencies:
- dependency-name: Aspire.Hosting.AppHost
  dependency-version: 9.4.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dotnet
- dependency-name: CommunityToolkit.Aspire.Hosting.Dapr
  dependency-version: 9.7.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dotnet
- dependency-name: Microsoft.Extensions.ServiceDiscovery
  dependency-version: 9.4.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dotnet
...

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Author: dependabot[bot]