downloads: upgrade CPython 3.9.10 to 3.9.11

Author: indygreg

pythonbuild/downloads.py

@@ -62,10 +62,10 @@
         "python_tag": "cp38",
     },
     "cpython-3.9": {
-        "url": "https://www.python.org/ftp/python/3.9.10/Python-3.9.10.tar.xz",
-        "size": 19154136,
-        "sha256": "0a8fbfb5287ebc3a13e9baf3d54e08fa06778ffeccf6311aef821bb3a6586cc8",
-        "version": "3.9.10",
+        "url": "https://www.python.org/ftp/python/3.9.11/Python-3.9.11.tar.xz",
+        "size": 19724780,
+        "sha256": "66767a35309d724f370df9e503c172b4ee444f49d62b98bc4eca725123e26c49",
+        "version": "3.9.11",
         "licenses": ["Python-2.0", "CNRI-Python"],
         "license_file": "LICENSE.cpython.txt",
         "python_tag": "cp39",