`python_install::install_multiple_patches` can time out on Windows

[`test / cargo test on windows 2 of 3`](https://github.com/astral-sh/uv/actions/runs/29373317691/job/87221541118?pr=20412) flaked on an unrelated workflow/configuration change: ```text TIMEOUT [120.071s] (1078/1093) uv::python python_install::install_multiple_patches running 1 test test python_install::install_multiple_patches has been running for over 60 seconds Installed 2 versions in 4.86s + cpython-3.12.9-windows-x86_64-none + cpython-3.12.11-windows-x86_64-none (python3.12.exe) Using CPython 3.12.11 Creating virtual environment at: .venv Activate with: .venv\Scripts\activate Python 3.12.11 (test timed out) ``` The shard ran 1093 tests: 1092 passed and this test timed out. The test is [`crates/uv/tests/python/python_install.rs`](https://github.com/astral-sh/uv/blob/6764ecdb5d410ce59e5e2e479e3ed42ee983dfdf/crates/uv/tests/python/python_install.rs#L3267-L3270). Possibly related to #14324, which tracks a different Python patch-upgrade test timing out on Windows.