Chore(deps): Bump actions/download-artifact

Bumps the actions-infrastructure group with 1 update: [actions/download-artifact](https://github.com/actions/download-artifact).


Updates `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
  dependency-group: actions-infrastructure
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/tox.yml

@@ -51,7 +51,7 @@ jobs:
         os: ['ubuntu-latest', 'macos-latest', 'windows-latest']
     steps:
       - name: Download packages
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: Packages
           path: dist/
@@ -76,7 +76,7 @@ jobs:
       id-token: write
     steps:
       - name: Download packages
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: Packages
           path: dist/