ci: exclude torch from build

.github/workflows/build.yml

@@ -30,7 +30,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install -r requirements.txt
+        pip install $(grep -v "^torch" requirements.txt)
         pip install pyinstaller
 
     - name: Build with PyInstaller (Windows)