[glib] (12 commits) ...Merge branch 'win32-socket' into 'main'

[Philip Withnall <pwithnall src gnome org>]

Summary of changes:

  d1520bd... glib/tests: move spawn-test-win32-gui
  a638b2b... gio: include Unix socket headers
  18d98e3... gio/tests: close leaked fd
  c4a7ddb... gio/tests/unix-fd: rename test
  e84b05a... glib/win32: drop needless #ifdef G_OS_WIN32
  982b074... glib/win32: fix potential leak on spawn error
  c984db6... glib/win32: introduce private g_win32_reopen_noninherited()
  c434720... glib/win32: replace reopen_noninherited()
  277657e... glib/win32: introduce private g_win32_handle_is_socket()
  a34a4e7... glib/win32: teach reopen_noninherited() about SOCKET
  960ed2f... glib/tests: add spawn-stderr-socket test
  9c9a262... Merge branch 'win32-socket' into 'main'