[Windows] Fix `get_modified_time` on locked files.

(cherry picked from commit 6597fa24a9eb6a601779b55f39cd0b7f51781cd1)

drivers/windows/file_access_windows.cpp

@@ -418,7 +418,7 @@ uint64_t FileAccessWindows::_get_modified_time(const String &p_file) {
 		file = file.substr(0, file.length() - 1);
 	}
 
-	HANDLE handle = CreateFileW((LPCWSTR)(file.utf16().get_data()), GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, nullptr);
+	HANDLE handle = CreateFileW((LPCWSTR)(file.utf16().get_data()), FILE_READ_ATTRIBUTES, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, nullptr, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, nullptr);
 
 	if (handle != INVALID_HANDLE_VALUE) {
 		FILETIME ft_create, ft_write;