Update codecov action to v5

Author: 80sVectorz

.github/workflows/ci.yml

@@ -64,6 +64,6 @@ jobs:
       run: uv run pytest --cov=src --cov-report=xml
 
     - name: Upload coverage reports to Codecov
-      uses: codecov/codecov-action@v4
+      uses: codecov/codecov-action@v5
       env:
         CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}