isinstance-second-argument-not-valid-type false positive for union types with None

[ytoku]

Bug description

#8206 does not fix the issue #8205 if the union type contains None.

# pylint: disable=missing-docstring,invalid-name
a = 1
isinstance(a, None | int)  # raises W1116

Configuration

No response

Command used

pylint test.py

Pylint output

************* Module test
test.py:3:0: W1116: Second argument of isinstance is not a type (isinstance-second-argument-not-valid-type)

------------------------------------------------------------------
Your code has been rated at 5.00/10 (previous run: 5.00/10, +0.00)

Expected behavior

no warnings

Pylint version

pylint 2.17.0
astroid 2.15.0
Python 3.10.6 (main, Nov 14 2022, 16:10:14) [GCC 11.3.0]

OS / Environment

No response

Additional dependencies

No response