Bump actions/upload-artifact from 3 to 4

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v3...v4)

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

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

.github/workflows/contrib.yml

@@ -76,7 +76,7 @@ jobs:
           file: coverage.xml
         if: ${{ always() }}
       - name: Upload pytest test results
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: pytest-results-${{ matrix.os }}-${{ matrix.python-version }}
           path: test-results.xml

.github/workflows/tests.yml

@@ -47,7 +47,7 @@ jobs:
       - name: Build sdist and wheel
         run: python -m build
       - run: twine check dist/*
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: dist
           path: dist/
@@ -150,7 +150,7 @@ jobs:
           file: coverage.xml
         if: ${{ always() }}
       - name: Upload pytest test results
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: pytest-results-${{ matrix.os }}-${{ matrix.python-version }}
           path: test-results.xml