Fix everything else?

Author: Starbuck5

buildconfig/stubs/mypy_allow_list.txt

@@ -27,3 +27,6 @@ pygame\.pypm
 pygame\._sdl2\.mixer
 pygame\.sysfont.*
 pygame\.docs.*
+
+# Remove me when we're checking stubs for SDL3!
+#pygame._audio

buildconfig/stubs/pygame/_audio.pyi

@@ -4,6 +4,9 @@ from typing import TypeVar
 from pygame.typing import FileLike
 from typing_extensions import Buffer
 
+# TODO: Support SDL3 stubchecking without failing when on SDL2 builds
+# Right now this module is unconditionally skipped in mypy_allow_list.txt
+
 def init() -> None: ...
 
 # def quit() -> None: ...
@@ -52,6 +55,7 @@ class AudioFormat:
     def __index__(self) -> int: ...
     def __repr__(self) -> str: ...
 
+UNKNOWN: AudioFormat
 U8: AudioFormat
 S8: AudioFormat
 S16LE: AudioFormat