Bump the actions group with 3 updates

Bumps the actions group with 3 updates: [actions/upload-artifact](https://github.com/actions/upload-artifact), [dawidd6/action-download-artifact](https://github.com/dawidd6/action-download-artifact) and [actions/download-artifact](https://github.com/actions/download-artifact).


Updates `actions/upload-artifact` from 6 to 7
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v6...v7)

Updates `dawidd6/action-download-artifact` from 15 to 16
- [Release notes](https://github.com/dawidd6/action-download-artifact/releases)
- [Commits](dawidd6/action-download-artifact@v15...v16)

Updates `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/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: dawidd6/action-download-artifact
  dependency-version: '16'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: actions/download-artifact
  dependency-version: '8'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
...

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

Author: dependabot[bot]

.github/workflows/docs-build.yml

@@ -16,7 +16,7 @@ jobs:
           cd docs
           make html
       - name: Upload Artifact
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: docs-build
           path: docs/_build/html

.github/workflows/docs-deploy.yml

@@ -13,7 +13,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Download Artifact
-        uses: dawidd6/action-download-artifact@v15
+        uses: dawidd6/action-download-artifact@v16
         with:
           workflow: docs-build.yml
           name: docs-build

.github/workflows/publish-package.yml

@@ -62,7 +62,7 @@ jobs:
       run: python -m zipfile --list dist/array_api_strict-*.whl
 
     - name: Upload distribution artifact
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v7
       with:
         name: dist-artifact
         path: dist
@@ -83,7 +83,7 @@ jobs:
 
     steps:
     - name: Download distribution artifact
-      uses: actions/download-artifact@v7
+      uses: actions/download-artifact@v8
       with:
         name: dist-artifact
         path: dist