chg: Add neo4j in CI

Author: Rafiot

.github/workflows/pytest.yml

@@ -34,7 +34,7 @@ jobs:
     - name: Install Python dependencies
       run: |
         python -m pip install --upgrade pip poetry
-        poetry install -E fileobjects -E openioc -E virustotal -E docs -E pdfexport -E url -E email -E brotli -vvv
+        poetry install -E fileobjects -E openioc -E virustotal -E docs -E pdfexport -E url -E email -E brotli -E neo4j -vvv
 
     - name: Test with nosetests
       run: |