Python 3.10: Allow writing union types as X | Y

### What would you like to happen?

Python 3.10 added the support of new syntax as replacement[1] for `typing.Union`.  


[1] https://peps.python.org/pep-0604/

### Issue Priority

Priority: 3

### Issue Component

Component: sdk-py-core