[3.14] gh-134993: Add os.lstat() to os.supports_dir_fd (GH-135188) (#135205)

gh-134993: Add os.lstat() to os.supports_dir_fd (GH-135188)
(cherry picked from commit e004cf8)

Co-authored-by: Victor Stinner <vstinner@python.org>

Author: miss-islington

Lib/os.py

@@ -118,6 +118,7 @@ def _add(str, fn):
     _add("HAVE_FCHMODAT",   "chmod")
     _add("HAVE_FCHOWNAT",   "chown")
     _add("HAVE_FSTATAT",    "stat")
+    _add("HAVE_LSTAT",      "lstat")
     _add("HAVE_FUTIMESAT",  "utime")
     _add("HAVE_LINKAT",     "link")
     _add("HAVE_MKDIRAT",    "mkdir")