update version

Author: cjld

python/jittor/__init__.py

@@ -7,7 +7,7 @@
 # This file is subject to the terms and conditions defined in
 # file 'LICENSE.txt', which is part of this source code package.
 # ***************************************************************
-__version__ = '1.1.7.3'
+__version__ = '1.1.7.4'
 from . import lock
 with lock.lock_scope():
     from . import compiler