Fix sigtimedwait and sigwaitinfo signature (#10803)

stdlib/signal.pyi

@@ -170,8 +170,12 @@ else:
             @property
             def si_band(self) -> int: ...
 
-        def sigtimedwait(sigset: Iterable[int], timeout: float) -> struct_siginfo | None: ...
-        def sigwaitinfo(sigset: Iterable[int]) -> struct_siginfo: ...
+        if sys.version_info >= (3, 10):
+            def sigtimedwait(__sigset: Iterable[int], __timeout: float) -> struct_siginfo | None: ...
+            def sigwaitinfo(__sigset: Iterable[int]) -> struct_siginfo: ...
+        else:
+            def sigtimedwait(sigset: Iterable[int], timeout: float) -> struct_siginfo | None: ...
+            def sigwaitinfo(sigset: Iterable[int]) -> struct_siginfo: ...
 
 if sys.version_info >= (3, 8):
     def strsignal(__signalnum: _SIGNUM) -> str | None: ...

tests/stubtest_allowlists/linux-py310.txt

@@ -1,6 +1,4 @@
 _?curses.color_pair
-signal.sigtimedwait
-signal.sigwaitinfo
 
 # ==========
 # Allowlist entries that cannot or should not be fixed

tests/stubtest_allowlists/linux-py311.txt

@@ -1,3 +1 @@
 _?curses.color_pair
-signal.sigtimedwait
-signal.sigwaitinfo

tests/stubtest_allowlists/linux-py312.txt

@@ -1,7 +1,5 @@
 _?curses.color_pair
 _posixsubprocess.fork_exec
-signal.sigtimedwait
-signal.sigwaitinfo
 
 # Exists on some Linux builds, and is documented,
 # but is unavailable in Github Actions on Linux with Python 3.12