fix(ci): 改用 pip install poetry（latest 2.x）+ in-project venv

Author: zcj220

.github/workflows/build-engine.yml

@@ -37,7 +37,10 @@ jobs:
           python-version: '3.10'
 
       - name: Install Poetry
-        run: pip install poetry==1.8.5
+        run: pip install poetry
+
+      - name: Configure Poetry virtualenv
+        run: poetry config virtualenvs.in-project true
 
       - name: Cache Poetry venv
         uses: actions/cache@v4