deps: Update codecov/codecov-action action to v5.4.3

Author: renovate[bot]

.github/workflows/ci.yml

@@ -69,6 +69,6 @@ jobs:
         run: pixi run -e ${{ matrix.environment }} tests-ci
 
       - name: Upload coverage report
-        uses: codecov/codecov-action@ad3126e916f78f00edff4ed0317cf185271ccc2d # v5.4.2
+        uses: codecov/codecov-action@18283e04ce6e62d37312384ff67231eb8fd56d24 # v5.4.3
         with:
           token: ${{ secrets.CODECOV_TOKEN }}