Fix to neo4j flow

.github/workflows/test_neo4j.yml

@@ -28,6 +28,18 @@ jobs:
       run:
         shell: bash
 
+    services:
+      postgres:
+        image: postgres:latest
+        env:
+          POSTGRES_USER: cognee
+          POSTGRES_PASSWORD: cognee
+          POSTGRES_DB: cognee_db
+        volumes:
+          - postgres_data:/var/lib/postgresql/data
+        ports:
+          - 5432:5432
+
     steps:
       - name: Check out
         uses: actions/checkout@v2
@@ -44,6 +56,13 @@ jobs:
           virtualenvs-in-project: true
           installer-parallel: true
 
+      - name: Wait for PostgreSQL to be ready
+        run: |
+          echo "Waiting for PostgreSQL to be ready..."
+          until pg_isready -h localhost -p 5432 -U cognee; do
+            sleep 1
+          done
+
       - name: Install dependencies
         run: poetry install --no-interaction
 
@@ -60,4 +79,9 @@ jobs:
           GRAPH_DATABASE_PASSWORD: ${{ secrets.NEO4J_API_KEY }}
           GRAPH_DATABASE_USERNAME: "neo4j"
           ENV: 'dev'
+          POSTGRES_USER: cognee
+          POSTGRES_PASSWORD: cognee
+          POSTGRES_DB: cognee_db
+          POSTGRES_HOST: localhost
+          POSTGRES_PORT: 5432
         run: poetry run python ./cognee/tests/test_neo4j.py