build(deps): bump codecov/codecov-action from 5.3.1 to 5.4.0

Author: merger-application[bot]

.github/workflows/tests.yml

@@ -43,7 +43,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
         command: pytest -n 1 --cov-report=xml:coverage-xdist.xml
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v5.3.1
+      uses: codecov/codecov-action@v5.4.0
       with:
         flags: linux
         env_vars: OS, PYTHON