Fix crash on failed attribute inference

[rootsec1]

Summary

• handle InferenceError raised while resolving attributes for no-member
• add a functional regression test for the metaclass lookup reproducer
• add a bugfix news fragment

When attribute inference fails, the checker now skips that owner instead of aborting the lint run with astroid-error. This follows the existing behavior for other unresolved attribute owners and avoids introducing a false positive from incomplete inference.

Closes #11356

Tests

• pytest -q tests/test_functional.py::test_functional[regression_11356] tests/checkers/unittest_typecheck.py
• pytest -q (2158 passed, 314 skipped, 5 xfailed)
• pre-commit run --files pylint/checkers/typecheck.py tests/functional/r/regression_03/regression_11356.py tests/functional/r/regression_03/regression_11356.rc doc/whatsnew/fragments/11356.bugfix

[DanielNoord]

Shall we just merge these then?

[github-actions]

🤖 According to the primer, this change has no effect on the checked open source code. 🤖🎉

This comment was generated for commit 6d7524f

[HDPark95]

Verified: crash reproduces on b44f86a, gone at 6d7524f; reverting only typecheck.py fails the new test (astroid-error), so it is load-bearing.

On continue: with several inferred owners, skipping only the failing one can create a message.

class Meta(type): pass
class A(metaclass=Meta): a = 1
class B: pass
OBJ = A if random.random() > 0.5 else B
print(OBJ.a)           # clean without the line below
for Meta.a in _: pass  # -> E1101: Class 'B' has no 'a' member

return, as has_dynamic_getattr above does for the same reason, drops it, keeps #11356 fixed, suite unchanged.