Bump the actions group with 2 updates (#471)

* Bump the actions group with 2 updates

Bumps the actions group with 2 updates: [actions/upload-artifact](https://github.com/actions/upload-artifact) and [actions/download-artifact](https://github.com/actions/download-artifact).


Updates `actions/upload-artifact` from 4 to 5
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v5)

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/upload-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: actions/download-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
...

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

* update uv.lock file

---------

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

Author: dependabot[bot]

.github/workflows/build.yml

@@ -114,7 +114,7 @@ jobs:
           uv pip install dist/*.whl
         shell: bash
       - name: Upload wheels as artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: python-packages-${{ runner.os }}
           path: |
@@ -132,7 +132,7 @@ jobs:
           SPHINX_IMMATERIAL_EXTERNAL_RESOURCE_CACHE_DIR: ${{ github.workspace }}/theme_build_cache
         run: uvx nox -s docs --forcecolor
       - name: Upload doc builds as artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: doc-builds-${{ runner.os }}
           path: docs/_build/
@@ -196,7 +196,7 @@ jobs:
         # `coverage run` cmd adds the working dir to python path, so no need to install pkg here
         run: uvx nox -s tests --forcecolor --python ${{ matrix.python-version }}
       - name: Upload coverage data
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: coverage-data-${{ runner.os }}-py${{ matrix.python-version }}
           path: .coverage*
@@ -208,7 +208,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: Download all artifacts
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           merge-multiple: true
           pattern: coverage-data-*
@@ -236,17 +236,17 @@ jobs:
     needs: [build]
     steps:
       - name: Download Linux package
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: python-packages-Linux
           path: dist-Linux
       - name: Download macOS package
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: python-packages-macOS
           path: dist-macOS
       - name: Download Windows package
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: python-packages-Windows
           path: dist-Windows
@@ -266,7 +266,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [build, test]
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: python-packages-Linux
           path: dist