Fix codecov (#271)

.github/workflows/ci.yaml

@@ -27,4 +27,6 @@ jobs:
       - name: Tests
         run: pytest --cov=switchbot --cov-report=term-missing --cov-report=xml tests
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v5.0.2
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }} # required