downloads: upgrade CPython 3.10.2 to 3.10.3

Author: indygreg

pythonbuild/downloads.py

@@ -71,10 +71,10 @@
         "python_tag": "cp39",
     },
     "cpython-3.10": {
-        "url": "https://www.python.org/ftp/python/3.10.2/Python-3.10.2.tar.xz",
-        "size": 18780936,
-        "sha256": "17de3ac7da9f2519aa9d64378c603a73a0e9ad58dffa8812e45160c086de64c7",
-        "version": "3.10.2",
+        "url": "https://www.python.org/ftp/python/3.10.3/Python-3.10.3.tar.xz",
+        "size": 19343528,
+        "sha256": "596c72de998dc39205bc4f70ef0dbf7edec740a306d09b49a9bd0a77806730dc",
+        "version": "3.10.3",
         "licenses": ["Python-2.0", "CNRI-Python"],
         "license_file": "LICENSE.cpython.txt",
         "python_tag": "cp310",