Use Final for Constant Literals in the stdlib (#12332)

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>

stdlib/@tests/stubtest_allowlists/linux-py313.txt

@@ -1,5 +1,4 @@
 # TODO: triage these (new in py313)
-_stat.SF_SETTABLE
 _stat.SF_SUPPORTED
 _stat.SF_SYNTHETIC
 fcntl.F_GETOWN_EX
@@ -49,7 +48,6 @@ posix.timerfd_settime
 posix.timerfd_settime_ns
 posix.unlockpt
 readline.backend
-stat.SF_SETTABLE
 stat.SF_SUPPORTED
 stat.SF_SYNTHETIC
 syslog.LOG_INSTALL

stdlib/@tests/stubtest_allowlists/win32-py313.txt

@@ -1,6 +1,5 @@
 # New in py313 (triage these!)
 _msi
-_stat.SF_SETTABLE
 _stat.SF_SUPPORTED
 _stat.SF_SYNTHETIC
 _winapi.BatchedWaitForMultipleObjects
@@ -36,7 +35,6 @@ os.fchmod
 os.lchmod
 os.path.exists
 os.path.lexists
-stat.SF_SETTABLE
 stat.SF_SUPPORTED
 stat.SF_SYNTHETIC
 subprocess.__all__