chore: bump version to 1.4.7

Author: bchew

setup.py

@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name="dynamodump",
-    version="1.4.6",
+    version="1.4.7",
     author="Benny Chew",
     author_email="noreply@bennychew.com",
     description="Simple backup and restore for Amazon DynamoDB using AWS SDK for Python (boto3)",