downloads: upgrade CPython 3.9.12 -> 3.9.13

Author: indygreg

pythonbuild/downloads.py

@@ -38,10 +38,10 @@
         "python_tag": "cp38",
     },
     "cpython-3.9": {
-        "url": "https://www.python.org/ftp/python/3.9.12/Python-3.9.12.tar.xz",
-        "size": 19740524,
-        "sha256": "2cd94b20670e4159c6d9ab57f91dbf255b97d8c1a1451d1c35f4ec1968adf971",
-        "version": "3.9.12",
+        "url": "https://www.python.org/ftp/python/3.9.13/Python-3.9.13.tar.xz",
+        "size": 19754368,
+        "sha256": "125b0c598f1e15d2aa65406e83f792df7d171cdf38c16803b149994316a3080f",
+        "version": "3.9.13",
         "licenses": ["Python-2.0", "CNRI-Python"],
         "license_file": "LICENSE.cpython.txt",
         "python_tag": "cp39",