Update Rust crate zone to 0.3.1

[oxide-renovate]

This PR contains the following updates:

Package	Type	Update	Change
zone	workspace.dependencies	patch	0.3.0 -> 0.3.1

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Configuration

📅 Schedule: Branch creation - "after 8pm,before 6am" in timezone America/Los_Angeles, Automerge - "after 8pm,before 6am" in timezone America/Los_Angeles.

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• If you want to rebase/retry this PR, check this box

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This PR has been generated by Renovate Bot.

[oxide-renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path Cargo.toml --package [email protected] --precise 0.3.1
error: There are multiple `zone` packages in your project, and the specification `[email protected]` is ambiguous.
Please re-run this command with one of the following specifications:
  registry+https://github.com/rust-lang/crates.io-index#[email protected]
  git+https://github.com/oxidecomputer/zone#0.3.1