feat(deployment): add GitHub Actions workflow for server deployment

.github/workflows/deployment.yml

@@ -0,0 +1,29 @@
+name: Deploy to Server
+
+on:
+  push:
+    tags:
+      - 'v*.*.*' 
+  workflow_dispatch:  
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: 检出代码
+      uses: actions/checkout@v3
+      
+    - name: 部署到服务器
+      uses: appleboy/ssh-action@v1
+      with:
+        host: ${{ secrets.SERVER_HOST }}
+        username: ${{ secrets.SERVER_USERNAME }}
+        key: ${{ secrets.SERVER_SSH_KEY }}
+        passphrase: ${{ secrets.SSH_PASSPHRASE }}
+        script: |
+          docker pull ghcr.io/drizzletime/foxel:dev
+          docker stop foxel-container || true
+          docker rm foxel-container || true
+          docker run -d --name foxel-container -p 8848:80 \
+            -e "DEFAULT_CONNECTION=${{ secrets.DEFAULT_CONNECTION }}" \
+            --pull always ghcr.io/drizzletime/foxel:dev