Bump the github_actions group across 1 directory with 2 updates

Bumps the github_actions group with 2 updates in the / directory: [actions/setup-node](https://github.com/actions/setup-node) and [actions/upload-artifact](https://github.com/actions/upload-artifact).


Updates `actions/setup-node` from 5 to 6
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v5...v6)

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

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github_actions
- dependency-name: actions/upload-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github_actions
...

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

Author: dependabot[bot]

.github/workflows/deploy-website.yaml

@@ -21,7 +21,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: Use Node.js
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: 20.x
       - name: Build website

.github/workflows/pytest.yml

@@ -34,7 +34,7 @@ jobs:
           pytest tests/unit_tests --collect-only
           pytest tests/unit_tests -v --junitxml=junit/test-results-${{ matrix.python-version }}.xml --cov=com --cov-report=xml --cov-report=html
       - name: Upload pytest test results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: pytest-results-${{ matrix.python-version }}
           path: junit/test-results-${{ matrix.python-version }}.xml