Is your feature request related to a problem? Please describe.

Python 3.15 adds support for the lazy soft keyword:

• https://docs.python.org/3.15/whatsnew/3.15.html#whatsnew315-lazy-imports
• https://peps.python.org/pep-0810/

This has now available for testing in Python 3.15.0a7:

• https://discuss.python.org/t/python-3-15-0-alpha-7/106475

Describe the solution you'd like

Add support for the lazy soft keyword.

Describe alternatives you've considered

Wait for the next Ruff release? astral-sh/ruff#21305

Additional context

lazy import random

if __name__ == "__main__":
    print(random.randint(1, 6))

❯ black --version
black, 26.3.0 (compiled: yes)
Python (CPython) 3.14.3

❯ black 1.py
error: cannot format 1.py: Cannot parse: 1:5: lazy import random

Oh no! 💥 💔 💥
1 file failed to reformat.