[llvm] Update actions/checkout action to v6 (PR #171065)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-github-workflow

Author: Mend Renovate (renovate-bot)

<details>
<summary>Changes</summary>

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://redirect.github.com/actions/checkout) | action | major | `v5.0.0` -> `v6.0.1` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

---

### Release Notes

<details>
<summary>actions/checkout (actions/checkout)</summary>

### [`v6.0.1`](https://redirect.github.com/actions/checkout/compare/v6.0.0...v6.0.1)

[Compare Source](https://redirect.github.com/actions/checkout/compare/v6.0.0...v6.0.1)

### [`v6.0.0`](https://redirect.github.com/actions/checkout/compare/v5.0.1...v6.0.0)

[Compare Source](https://redirect.github.com/actions/checkout/compare/v5.0.1...v6.0.0)

### [`v5.0.1`](https://redirect.github.com/actions/checkout/releases/tag/v5.0.1)

[Compare Source](https://redirect.github.com/actions/checkout/compare/v5.0.0...v5.0.1)

##### What's Changed

- Port v6 cleanup to v5 by [@&#<!-- -->8203;ericsciple](https://redirect.github.com/ericsciple) in [#&#<!-- -->8203;2301](https://redirect.github.com/actions/checkout/pull/2301)

**Full Changelog**: <https://github.com/actions/checkout/compare/v5...v5.0.1>

</details>

---

### Configuration

📅 **Schedule**: Branch creation - Between 12:00 AM and 12:59 AM, only on Monday ( * 0 * * 1 ) (UTC), Automerge - At any time (no schedule defined).

🚦 **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.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

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This PR was generated by [Mend Renovate](https://mend.io/renovate/). View the [repository job log](https://developer.mend.io/github/llvm/llvm-project).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0Mi4zMi4yIiwidXBkYXRlZEluVmVyIjoiNDIuMzIuMiIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOltdfQ==-->


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Full diff: https://github.com/llvm/llvm-project/pull/171065.diff


1 Files Affected:

- (modified) .github/workflows/release-sources.yml (+1-1) 


``````````diff
diff --git a/.github/workflows/release-sources.yml b/.github/workflows/release-sources.yml
index 20e7c62976098..ea6a81c8c7b95 100644
--- a/.github/workflows/release-sources.yml
+++ b/.github/workflows/release-sources.yml
@@ -108,7 +108,7 @@ jobs:
       attestations: write
     steps:
       - name: Checkout Release Scripts
-        uses: actions/checkout at 08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout at 8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           sparse-checkout: |
             .github/workflows/upload-release-artifact

``````````

</details>


https://github.com/llvm/llvm-project/pull/171065