CI: fix run syntax for macOS

.github/workflows/main.yml

@@ -427,7 +427,7 @@ jobs:
         repository: love2d/love-apple-dependencies
         ref: main
     - name: Move Dependencies
-      run:
+      run: |
         mv apple-dependencies/macOS/Frameworks platform/xcode/macosx
         mv apple-dependencies/shared platform/xcode
     - name: Build