Fix wrong test path in coverage (#380)

Author: kasium

.github/workflows/main.yml

@@ -64,7 +64,7 @@ jobs:
           PYTEST_DBURI=$(python -m test.ci_setup setup ${{ secrets.TEST_DBURI }})
           echo "::add-mask::$PYTEST_DBURI"
           export PYTEST_ADDOPTS="--dburi $PYTEST_DBURI"
-          pytest -v --cov sqlalchemy_hana --cov tests --cov-report xml test/
+          pytest -v --cov sqlalchemy_hana --cov test --cov-report xml test/
           python test/ci_setup.py teardown ${{ secrets.TEST_DBURI }} $PYTEST_DBURI
     -   name: run diff-cover
         if: ${{ matrix.sqlalchemy-version == '2.0.*' }}