[llvm] Update actions/upload-artifact action to v6 (PR #176677)

[Mend Renovate via llvm-commits]

https://github.com/renovate-bot created https://github.com/llvm/llvm-project/pull/176677

This PR contains the following updates:

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

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

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### Release Notes

<details>
<summary>actions/upload-artifact (actions/upload-artifact)</summary>

### [`v6.0.0`](https://redirect.github.com/actions/upload-artifact/compare/v5.0.0...v6.0.0)

[Compare Source](https://redirect.github.com/actions/upload-artifact/compare/v5.0.0...v6.0.0)

</details>

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### Configuration

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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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>From 9f7d0afe5d50a3d904be6481641bb7450630501d Mon Sep 17 00:00:00 2001
From: Mend Renovate <bot at renovateapp.com>
Date: Mon, 19 Jan 2026 00:53:10 +0000
Subject: [PATCH] Update actions/upload-artifact action to v6

---
 .github/workflows/ids-check.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ids-check.yml b/.github/workflows/ids-check.yml
index 7dcd9ff56d892..68f38d6212ff8 100644
--- a/.github/workflows/ids-check.yml
+++ b/.github/workflows/ids-check.yml
@@ -93,7 +93,7 @@ jobs:
             --changed-files "$CHANGED_FILES"
 
       - name: Upload results
-        uses: actions/upload-artifact at 330a01c490aca151604b8cf639adc76d48f6c5d4 # v5.0.0
+        uses: actions/upload-artifact at b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
         if: always()
         with:
           name: workflow-args