os: TempDir uses GetTempPath2 on Windows if available

This generates GetTempPath2 together with RtlGetNtVersionNumbers. The
latter is needed to determine if the running Windows has GetTempPath2
by comparing it against the minimum build number that has the API.
RtlGetNtVersionNumbers was generated into syscall/windows since
syscall is locked down.

Fixes #56899

Author: nwnt

src/internal/syscall/windows/syscall_windows.go

@@ -367,3 +367,4 @@ func LoadGetFinalPathNameByHandle() error {
 //sys	DestroyEnvironmentBlock(block *uint16) (err error) = userenv.DestroyEnvironmentBlock
 
 //sys	RtlGenRandom(buf []byte) (err error) = advapi32.SystemFunction036
+//sys	RtlGetNtVersionNumbers(majorVersion *uint32, minorVersion *uint32, buildNumber *uint32) = ntdll.RtlGetNtVersionNumbers

src/internal/syscall/windows/zsyscall_windows.go

@@ -300,10 +300,17 @@ func Pipe() (r *File, w *File, err error) {
 }
 
 func tempDir() string {
+	getTempPath := syscall.GetTempPath
+	var maj, min, build uint32
+	windows.RtlGetNtVersionNumbers(&maj, &min, &build)
+	build &= 0xffff
+	if build >= 20348 {
+		getTempPath = syscall.GetTempPath2
+	}
 	n := uint32(syscall.MAX_PATH)
 	for {
 		b := make([]uint16, n)
-		n, _ = syscall.GetTempPath(uint32(len(b)), &b[0])
+		n, _ = getTempPath(uint32(len(b)), &b[0])
 		if n > uint32(len(b)) {
 			continue
 		}

src/os/file_windows.go

@@ -237,6 +237,7 @@ func NewCallbackCDecl(fn any) uintptr {
 //sys	DuplicateHandle(hSourceProcessHandle Handle, hSourceHandle Handle, hTargetProcessHandle Handle, lpTargetHandle *Handle, dwDesiredAccess uint32, bInheritHandle bool, dwOptions uint32) (err error)
 //sys	WaitForSingleObject(handle Handle, waitMilliseconds uint32) (event uint32, err error) [failretval==0xffffffff]
 //sys	GetTempPath(buflen uint32, buf *uint16) (n uint32, err error) = GetTempPathW
+//sys	GetTempPath2(buflen uint32, buf *uint16) (n uint32, err error) = GetTempPath2W
 //sys	CreatePipe(readhandle *Handle, writehandle *Handle, sa *SecurityAttributes, size uint32) (err error)
 //sys	GetFileType(filehandle Handle) (n uint32, err error)
 //sys	CryptAcquireContext(provhandle *Handle, container *uint16, provider *uint16, provtype uint32, flags uint32) (err error) = advapi32.CryptAcquireContextW