chore(deps): bump actions/upload-artifact from 4 to 5

Bumps [actions/upload-artifact](https://github.com/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/upload-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -72,13 +72,13 @@ jobs:
           fi
 
       - name: Upload coverage.xml
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: coverage-${{ matrix.python-version }}
           path: coverage.xml
 
       - name: Upload coverage HTML
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: coverage-html-${{ matrix.python-version }}
           path: htmlcov
@@ -125,7 +125,7 @@ jobs:
 
       - name: Upload security reports
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: security-reports
           path: |
@@ -158,7 +158,7 @@ jobs:
         run: uv run sphinx-build -b html docs docs/_build/html
 
       - name: Upload documentation artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: documentation
           path: docs/_build/html