Bump Microsoft.Extensions.Http.Resilience (#1319)

Bumps the dotnet group in /docs/fundamentals/snippets/volumes/VolumeMounts.AppHost with 1 update: Microsoft.Extensions.Http.Resilience.


Updates `Microsoft.Extensions.Http.Resilience` from 8.6.0 to 8.7.0

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.Http.Resilience
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dotnet
...

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