workflow remove upload to codecov attempt

Author: TimBerberich

.github/workflows/tests.yml

@@ -36,10 +36,3 @@ jobs:
     - name: Test with pytest
       run: |
         python3 -m pytest --cov=static_interpolation/ --cov-report=xml .
-
-    - name: Upload coverage reports to Codecov
-      uses: codecov/codecov-action@v6
-      with:
-        fail_ci_if_error: true
-        token: ${{ secrets.CODECOV_TOKEN }}
-        verbose: true