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

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

stdlib/lzma.pyi

@@ -1,7 +1,7 @@
 from _compression import BaseStream
 from _typeshed import ReadableBuffer, StrOrBytesPath
 from collections.abc import Mapping, Sequence
-from typing import IO, Any, Literal, TextIO, final, overload
+from typing import IO, Any, Final, Literal, TextIO, final, overload
 from typing_extensions import Self, TypeAlias
 
 __all__ = [
@@ -50,33 +50,33 @@ _PathOrFile: TypeAlias = StrOrBytesPath | IO[bytes]
 
 _FilterChain: TypeAlias = Sequence[Mapping[str, Any]]
 
-FORMAT_AUTO: Literal[0]
-FORMAT_XZ: Literal[1]
-FORMAT_ALONE: Literal[2]
-FORMAT_RAW: Literal[3]
-CHECK_NONE: Literal[0]
-CHECK_CRC32: Literal[1]
-CHECK_CRC64: Literal[4]
-CHECK_SHA256: Literal[10]
-CHECK_ID_MAX: Literal[15]
-CHECK_UNKNOWN: Literal[16]
+FORMAT_AUTO: Final = 0
+FORMAT_XZ: Final = 1
+FORMAT_ALONE: Final = 2
+FORMAT_RAW: Final = 3
+CHECK_NONE: Final = 0
+CHECK_CRC32: Final = 1
+CHECK_CRC64: Final = 4
+CHECK_SHA256: Final = 10
+CHECK_ID_MAX: Final = 15
+CHECK_UNKNOWN: Final = 16
 FILTER_LZMA1: int  # v big number
-FILTER_LZMA2: Literal[33]
-FILTER_DELTA: Literal[3]
-FILTER_X86: Literal[4]
-FILTER_IA64: Literal[6]
-FILTER_ARM: Literal[7]
-FILTER_ARMTHUMB: Literal[8]
-FILTER_SPARC: Literal[9]
-FILTER_POWERPC: Literal[5]
-MF_HC3: Literal[3]
-MF_HC4: Literal[4]
-MF_BT2: Literal[18]
-MF_BT3: Literal[19]
-MF_BT4: Literal[20]
-MODE_FAST: Literal[1]
-MODE_NORMAL: Literal[2]
-PRESET_DEFAULT: Literal[6]
+FILTER_LZMA2: Final = 33
+FILTER_DELTA: Final = 3
+FILTER_X86: Final = 4
+FILTER_IA64: Final = 6
+FILTER_ARM: Final = 7
+FILTER_ARMTHUMB: Final = 8
+FILTER_SPARC: Final = 9
+FILTER_POWERPC: Final = 5
+MF_HC3: Final = 3
+MF_HC4: Final = 4
+MF_BT2: Final = 18
+MF_BT3: Final = 19
+MF_BT4: Final = 20
+MODE_FAST: Final = 1
+MODE_NORMAL: Final = 2
+PRESET_DEFAULT: Final = 6
 PRESET_EXTREME: int  # v big number
 
 # from _lzma.c