build(deps): bump actions/download-artifact from 5.0.0 to 6.0.0

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 5.0.0 to 6.0.0.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](634f93cb29...018cc2cf5b)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/eval.yml

@@ -167,7 +167,7 @@ jobs:
           target-as-trusted-at: ${{ inputs.targetSha }}
 
       - name: Download output paths and eval stats for all systems
-        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
+        uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 # v6.0.0
         with:
           pattern: diff-*
           path: diff
@@ -242,7 +242,7 @@ jobs:
     needs: [versions, eval]
     steps:
       - name: Download output paths and eval stats for all versions
-        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
+        uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 # v6.0.0
         with:
           pattern: "*-diff-*"
           path: versions

.github/workflows/reviewers.yml

@@ -124,7 +124,7 @@ jobs:
         run: gh api /rate_limit | jq
 
       - name: Download the comparison results
-        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
+        uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 # v6.0.0
         with:
           run-id: ${{ steps.eval.outputs.run-id }}
           github-token: ${{ github.token }}