⬆️ Bump codecov/codecov-action from 1 to 3 (#143)

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -48,7 +48,7 @@ jobs:
         pytest --cov=sphinx_design --cov-report=xml --cov-report=term-missing
     - name: Upload to Codecov
       if: matrix.python-version == '3.8' && matrix.os == 'ubuntu-latest'
-      uses: codecov/codecov-action@v1
+      uses: codecov/codecov-action@v3
       with:
         name: pytests
         flags: pytests