fix(win): use-after-free from unsynchronized access to ptyhandles (#922)

The windows backend keeps a global vector of  `ptyHandles`.
Since the cleanup of the baton was moved into the per-pty watcher thread
(commit 17062cd):

- The watcher thread called `remove_pty_baton` without
  any lock, racing with other watchers and with JS-thread reads.
- `emplace_back` in `startProcess` could reallocate the vector while
  another thread was iterating it.

Merge pull request #898 from microsoft/anthonykim1/updateConpty1.25

Update conpty to 1.25.260303002

Merge pull request #884 from Amiya167/docs/update-readme

Add Logos to Applications list

fix: /dev/ptmx leak on macOS (#882)

* fix: /dev/ptmx leak on macOS

* fix: flaky test

* fix: ignore spawn_helper in process title getter

Merge pull request #881 from microsoft/anthonykim1/resizeUsePixel

Add pixel size support to resize()

chore: add stack-protector-strong flag (#880)

Merge pull request #868 from microsoft/anthonykim1/removeWinPty

Remove support for winpty

Fix CLOSE_RANGE_CLOEXEC build error on Alpine (#873)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: rzhao271 <7199958+rzhao271@users.noreply.github.com>

Merge pull request #870 from microsoft/rzhao271/polish-prebuilds

chore: polish prebuilds pipeline

Merge pull request #867 from microsoft/tyriar/657

fix: close inherited file descriptors in child process on Linux