Update buildapp.yml (qnblackcat#1662)

Author: Entropyi

.github/workflows/buildapp.yml

@@ -79,7 +79,7 @@ jobs:
 
       - name: Caching SDK
         id: SDK
-        uses: actions/cache@v4.1.1
+        uses: actions/cache@v4
         env:
           cache-name: iOS-16.5-SDK
         with: