Update Rust crate objc2 to 0.6.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
objc2	dependencies	minor	0.5.2 → 0.6.0

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Release Notes

madsmtm/objc2 (objc2)

v0.6.4

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v0.6.3

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v0.6.2

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v0.6.1

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v0.6.0

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Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• Automerge
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🚦 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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[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: pkgs/devfiler/Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path pkgs/devfiler/Cargo.toml --workspace
error: failed to parse manifest at `/tmp/renovate/repos/github/simonswine/nixos/pkgs/devfiler/Cargo.toml`

Caused by:
  no targets specified in the manifest
  either src/lib.rs, src/main.rs, a [lib] section, or [[bin]] section must be present