updates CI

Author: saxix

.github/workflows/tests.yml

@@ -49,9 +49,7 @@ jobs:
         run: tox run -vv --notest --skip-missing-interpreters false -e ${{ matrix.env }}
 
       - name: Run test suite
-        run: |
-          export COV_CMD=$(if [ ${{ matrix.env }} == 3.12 ]; then echo "--cov=pytest_echo --cov-report=xml"; else echo ; fi)
-          tox run --skip-pkg-install -e ${{ matrix.env }} -- ${COV_CMD}
+        run: tox run --skip-pkg-install -e ${{ matrix.env }}
         env:
           PYTEST_ADDOPTS: "-vv --durations=20"
           DIFF_AGAINST: HEAD