fix: use virtual environment for deployment and systemd

.gitea/workflows/deploy.yaml

@@ -12,9 +12,10 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v3
 
-      - name: Install dependencies
+      - name: Setup Virtual Environment
         run: |
-          pip install -r requirements.txt
+          python3 -m venv venv
+          ./venv/bin/pip install -r requirements.txt
 
       - name: Update Systemd Service
         run: |