libuv: win/spawn: optionally run executable paths with no file extension

Backport libuv commit `3f7191e5` (win/spawn: optionally run executable
paths with no file extension, 2024-02-05, v1.48.0~8) to add the
`UV_PROCESS_WINDOWS_FILE_PATH_EXACT_NAME` option we now use.

Issue: #25450
4 files changed