[release/13.4] Update MongoDB.Driver to version 3.9.0

[aspire-repo-bot]

Backport of #18078 to release/13.4

/cc @davidfowl @Falco20019

Customer Impact

Testing

Risk

Regression?

[Copilot]

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[github-actions]

🚀 Dogfood this PR with:

⚠️ WARNING: Do not do this without first carefully reviewing the code of this PR to satisfy yourself it is safe.

curl -fsSL https://raw.githubusercontent.com/microsoft/aspire/main/eng/scripts/get-aspire-cli-pr.sh | bash -s -- 18279

Or

• Run remotely in PowerShell:

iex "& { $(irm https://raw.githubusercontent.com/microsoft/aspire/main/eng/scripts/get-aspire-cli-pr.ps1) } 18279"

[github-actions]

Retrying the failed CI jobs for this pull request from the CI run attempt. The rerun is being tracked in the rerun attempt.

[aspire-repo-bot]

✅ No documentation update needed.

docs_optional → dependency_bump

No documentation PR is needed for this change.

• Triggered signals: none (signal_count = 0; only_test_or_build_changes = true).
• Changed files: only Directory.Packages.props — bumps MongoDB.Driver from 3.8.1 to 3.9.0 and removes the now-unnecessary transitive pins for SharpCompress and Snappier.
• Allowlist category: dependency_bump — the single changed file is the central package-version manifest, and the change is a pure version bump with no new or changed public API, CLI options, configuration keys, or user-visible behavior in this PR.

[Falco20019]

@davidfowl Thanks for the backport. Is there a roadmap on when to expect 13.4.6?