chore: set explicit xcode version to ios build on CI

Author: illuminati1911

.github/workflows/ci.yml

@@ -195,6 +195,9 @@ jobs:
 
       - name: Setup
         uses: ./.github/actions/setup
+      
+      - name: Select XCode 26.3
+        run: sudo xcode-select -s '/Applications/Xcode_26.3.0.app/Contents/Developer'
 
       - name: Cache turborepo for iOS
         uses: actions/cache@v3