Fix creation of dynamic property warning

[kirtangajjar]

Description of the Change

Fix creation of dynamic property warning

Closes #1229

How to test the Change

1. Create a site with PHP 8.2+
2. Create an external connection
3. Ensure that the warnings in debug logs are no longer shown

Changelog Entry

Fixed - Fix creation of dynamic property warning

Credits

Props @kirtangajjar

Checklist:

• [x] I agree to follow this project's Code of Conduct.
• [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my change.
• [x] All new and existing tests pass.