Update tests.yml

.github/workflows/tests.yml

@@ -41,7 +41,7 @@ jobs:
           sudo apt-get install graphviz
           python -V
           python -m pip install --upgrade pip
-          python -m pip install pydot pytest pytest-cov pytest-html rdflib ruff
+          python -m pip install benchman pydot pytest pytest-cov pytest-html rdflib ruff
           # if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
           python -m pip install -e .
           python -m pip list