ci: update codecov/codecov-action to v5

Signed-off-by: Filipe Laíns <lains@riseup.net>

Author: FFY00

.github/workflows/tests.yml

@@ -37,7 +37,7 @@ jobs:
         run: nox -s test-${{ matrix.python }}
 
       - name: Send coverage report
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v5
         env:
           PYTHON: ${{ matrix.python }}
         with: