feat: list all Xcode versions

Author: OlenaPostindustria

.github/workflows/ios-sdk-ci.yml

@@ -19,6 +19,8 @@ jobs:
         with:
             ruby-version: 3.0.7
             bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+      - name: List installed Xcode versions
+        run: ls /Applications | grep Xcode
       - name: Select Xcode 26.0
         run: sudo xcode-select --switch /Applications/Xcode_26.0.app/Contents/Developer