pyside6-designer object 'libpython3.10.so' from LD_PRELOAD cannot be preloaded in virtual environment

By default, the virtual environment does not copy libpythonX.X.so to the .venv/lib/ directory. Thus, with the venv activated, running pyside6-designer would showing the following error.

Error: ERROR: ld.so: object 'libpython3.10.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored. 

This might affect the ability to load custom widgets in Qt Designer.

Steps to Reproduce with Poetry (to create virtual environment):

1. Create a virtual environment by 'python -m venv ./test/.venv'
2. Activate the virtual environment by 'source ./test/.venv/bin/activate'
3. Invoke 'pyside6-designer' in the activated virtual environment
4. No plugins and custom widgets are loaded
5. Close the designer GUI app
6. The error mentioned above shows in the terminal after the app exited

This behavior is mentioned in https://github.com/python/cpython/issues/87500 from the official repo.