[glib] (11 commits) ...Merge branch 'w32-contenttype' into 'main'

[Philip Withnall <pwithnall src gnome org>]

Summary of changes:

  9f2660f... gio: fix OOB string access if filename is empty
  b337955... gio: return '*' content type on win32 from unknown mime
  9d852bc... gio: implement simple directory type detection
  529e091... gio/tests: fix content type guess for directory on win32
  ab0c00b... gio/tests: fix various content type guesses on win32
  b60b0ec... gio: relax g_content_type_is_a on win32
  452d64a... tests: use Windows mime type for executable
  5f1bae1... gio/tests: fix test_icon on win32
  7fa4999... tests: skip test_tree on win32
  b0c5355... tests: skip check anything is octet-stream
  9b77b75... Merge branch 'w32-contenttype' into 'main'