winVersion.getWinVer: call sys.getwindowsversion function inside getW…

…inVer, removing the need to look up old winVersion tuple. Re nvaccess#11837.

Rather than using now old winVersion tuple, call sys.getwindowsversion function directly from getWinVer function.

source/winVersion.py

@@ -120,11 +120,12 @@ def isWin10(self, release: str = "1507", atLeast: bool = True):
 
 
 def getWinVer():
+	winVer = sys.getwindowsversion()
 	return WinVersion(
-		major=winVersion.major,
-		minor=winVersion.minor,
-		build=winVersion.build,
-		servicePack=winVersion.service_pack
+		major=winVer.major,
+		minor=winVer.minor,
+		build=winVer.build,
+		servicePack=winVer.service_pack
 	)