[`ruff`] Add `ctypes.LittleEndianStructure` and others alike to existing exception (`RUF012`) (#27753)
## Summary
#22559 Added an exception to the _fields_ Class Variable not needing an
annotation.
I have the same issue as what the fix is supposed to fix for certain
variants of ctypes.Structure.
## Test Plan
I extended the ruff012.py file with extra base types and then I added
the extra base types to the helper.rs function that detected the
original case. Then I updated the snapshot, as the output is what I now
expect.