build: update windows-sys to 0.59.0

[ErichDonGubler]

Carries on the effort from #1820, with some fixes that should make tests compile now.

[Darksonn]

There's a build failure.

     Checking mio v1.0.3 (D:\a\mio\mio)
  error[E0425]: cannot find function `null_mut` in this scope
    --> src\sys\windows\afd.rs:69:13
     |
  69 |             null_mut(),
     |             ^^^^^^^^ not found in this scope
     |
  help: consider importing this function
     |
  1  + use std::ptr::null_mut;
     |

[ErichDonGubler]

@Darksonn:

There's a build failure.

     Checking mio v1.0.3 (D:\a\mio\mio)
  error[E0425]: cannot find function `null_mut` in this scope
    --> src\sys\windows\afd.rs:69:13
     |
  69 |             null_mut(),
     |             ^^^^^^^^ not found in this scope
     |
  help: consider importing this function
     |
  1  + use std::ptr::null_mut;
     |

Ah, that was an interesting feature combination that I had to use to reproduce locally. 😅 Glad CI caught it!

[Snowiiii]

Any progress here ?

[ErichDonGubler]

@Snowiiii: None, until you'd asked, and I'd refreshed my memory on this PR. 😀

I've updated the contents of the PR and its conversations with my latest thinking. I think this is ready for a re-review from @Darksonn.

[Snowiiii]

@Darksonn ?

[Thomasdezeeuw]

One nit, otherwise LGTM.

[Thomasdezeeuw]

Nit: can we undo these unrelated changes.

[ErichDonGubler]

This was changed by the commit titled chore: run `cargo +1.85.0 clippy --workspace --all-features --all-targets --fix` . At the time, that was the easiest way to make CI pass; I'll try reverting this change, since it seems many of the other clippy fixes have been subsumed by mainline.

[Thomasdezeeuw]

Another useless lint was added to Clippy... I've opened #1870 to fix it, will merge this after. No need to make any further changes.