build(deps): Bump actions/download-artifact from 5 to 6 (#313)

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 5 to 6.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v5...v6)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/e2e.yml

@@ -122,12 +122,12 @@ jobs:
     needs: [build-modctl, download-model]
     steps:
       - name: Download modctl artifact
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: modctl-artifact
           path: modctl
       - name: Download model artifact
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: model-artifact
           path: ${{ env.MODEL_DIR }}

.github/workflows/release.yaml

@@ -135,7 +135,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Download all artifacts
-      uses: actions/download-artifact@v5
+      uses: actions/download-artifact@v6
       with:
         path: artifacts