Add 32-bit Windows target

[charliermarsh]

Summary

Closes #6245.

Test Plan

❯ cargo run pip install sqlalchemy --python-platform i686-pc-windows-msvc --verbose --no-cache --reinstall
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
     Running `target/debug/uv pip install sqlalchemy --python-platform i686-pc-windows-msvc --verbose --no-cache --reinstall`
DEBUG uv 0.2.37
DEBUG Searching for Python interpreter in system path
DEBUG Found `cpython-3.12.3-macos-aarch64-none` at `/Users/crmarsh/workspace/uv/.venv/bin/python3` (virtual environment)
DEBUG Using Python 3.12.3 environment at .venv/bin/python3
DEBUG Acquired lock for `.venv`
DEBUG Using request timeout of 30s
DEBUG Solving with installed Python version: 3.12.3
DEBUG Adding direct dependency: sqlalchemy*
DEBUG No cache entry for: https://pypi.org/simple/sqlalchemy/
WARN Skipping file for sqlalchemy: SQLAlchemy-0.1.1-py2.4.egg
WARN Skipping file for sqlalchemy: SQLAlchemy-0.1.2-py2.4.egg
WARN Skipping file for sqlalchemy: SQLAlchemy-0.1.3-py2.4.egg
WARN Skipping file for sqlalchemy: SQLAlchemy-0.1.4-py2.4.egg
DEBUG Searching for a compatible version of sqlalchemy (*)
DEBUG Selecting: sqlalchemy==2.0.32 [compatible] (SQLAlchemy-2.0.32-cp312-cp312-win32.whl)
DEBUG No cache entry for: https://files.pythonhosted.org/packages/50/ef/973e0bbf2be5c12e34dca92139ca100f51ba078e36c3c06fd1dc8480c209/SQLAlchemy-2.0.32-cp312-cp312-win32.whl.metadata
DEBUG Adding transitive dependency for sqlalchemy==2.0.32: typing-extensions>=4.6.0
DEBUG No cache entry for: https://pypi.org/simple/typing-extensions/
DEBUG Searching for a compatible version of typing-extensions (>=4.6.0)
DEBUG Selecting: typing-extensions==4.12.2 [compatible] (typing_extensions-4.12.2-py3-none-any.whl)
DEBUG No cache entry for: https://files.pythonhosted.org/packages/26/9f/ad63fc0248c5379346306f8668cda6e2e2e9c95e01216d2b8ffd9ff037d0/typing_extensions-4.12.2-py3-none-any.whl.metadata
DEBUG Tried 2 versions: sqlalchemy 1, typing-extensions 1
DEBUG Split specific environment resolution took 0.390s
Resolved 2 packages in 391ms
DEBUG Must revalidate requirement: sqlalchemy
DEBUG Must revalidate requirement: typing-extensions
DEBUG Unnecessary package: markupsafe==2.1.5
DEBUG Unnecessary package: filelock==3.15.4
DEBUG Unnecessary package: fsspec==2024.6.1
DEBUG Unnecessary package: jinja2==3.1.4
DEBUG Unnecessary package: mpmath==1.3.0
DEBUG Unnecessary package: networkx==3.3
DEBUG Unnecessary package: setuptools==72.2.0
DEBUG Unnecessary package: sympy==1.13.2
DEBUG Unnecessary package: torch==2.4.0
DEBUG No cache entry for: https://files.pythonhosted.org/packages/50/ef/973e0bbf2be5c12e34dca92139ca100f51ba078e36c3c06fd1dc8480c209/SQLAlchemy-2.0.32-cp312-cp312-win32.whl
DEBUG No cache entry for: https://files.pythonhosted.org/packages/26/9f/ad63fc0248c5379346306f8668cda6e2e2e9c95e01216d2b8ffd9ff037d0/typing_extensions-4.12.2-py3-none-any.whl
Prepared 2 packages in 150ms
DEBUG Uninstalled sqlalchemy (275 files, 25 directories)
DEBUG Uninstalled typing-extensions (7 files, 1 directory)