`path.win32.isAbsolute` considers relative paths absolute

### Version 22.11.0 ### Platform ```text Linux pc 6.8.0-48-generic #48-Ubuntu SMP PREEMPT_DYNAMIC Fri Sep 27 14:04:52 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux ``` ### Subsystem _No response_ ### What steps will reproduce the bug? ``` require('path').win32.isAbsolute('\\foo') === true ``` ### How often does it reproduce? Is there a required condition? Yes. No. ### What is the expected behavior? Why is that the expected behavior? Here's a behavior of `cd` on `Windows`: ``` C:\Users\user> cd \Windows C:\Windows> ``` `\Windows` is relative to drive name. Expected output for `isAbsolute()` is false. ### What do you see instead? `isAbsolute()` is true. ### Additional information (Edited to prevent the issue from deletion by dumb AI.)