add third party astunparse

Third_Party_Open_Source_Software_Notice

@@ -9649,3 +9649,8 @@ THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 DEALINGS IN THE SOFTWARE.
+
+Software: astunparse 1.6.3
+Copyright notice:
+Copyright (c) 2014, Simon Percivall
+Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 Python Software Foundation

requirements.txt

@@ -12,4 +12,4 @@ pycocotools >= 2.0.2        # for st test
 tables >= 3.6.1             # for st test
 easydict >= 1.9             # for st test
 psutil >= 5.7.0
-astunparse >= 1.3
+astunparse >= 1.6.3

setup.py

@@ -115,7 +115,7 @@ required_package = [
     'scipy >= 1.5.2',
     'packaging >= 20.0',
     'psutil >= 5.6.1',
-    'astunparse >= 1.3'
+    'astunparse >= 1.6.3'
 ]
 
 package_data = {