Bump actions/download-artifact from 7 to 8 (#258)

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 7 to 8.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v7...v8)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: '8'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/docker.yml

@@ -80,7 +80,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Restore docker image
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           name: docker
           path: ${{ env.IMAGE }}
@@ -123,7 +123,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Restore docker image
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           name: docker
           path: ${{ env.IMAGE }}

.github/workflows/test.yml

@@ -95,13 +95,13 @@ jobs:
     steps:
     - name: Download sdist and wheel artifacts
       if: matrix.package != 'archive'
-      uses: actions/download-artifact@v7
+      uses: actions/download-artifact@v8
       with:
         name: dist
         path: dist/
     - name: Download git archive artifact
       if: matrix.package == 'archive'
-      uses: actions/download-artifact@v7
+      uses: actions/download-artifact@v8
       with:
         name: archive
         path: archive/