Bump actions/upload-artifact from 4 to 7 (#49)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/python-ci.yml

@@ -119,7 +119,7 @@ jobs:
           bandit -r src/ -f screen
 
       - name: Upload Bandit results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: bandit-report
@@ -178,7 +178,7 @@ jobs:
         run: mkdocs build --strict
 
       - name: Upload documentation
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: documentation
           path: site/
@@ -215,7 +215,7 @@ jobs:
         run: twine check dist/*
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: dist
           path: dist/