Bump from 3.12.5 -> 3.12.6

Author: zanieb

pythonbuild/downloads.py

@@ -71,10 +71,10 @@
         "python_tag": "cp311",
     },
     "cpython-3.12": {
-        "url": "https://www.python.org/ftp/python/3.12.5/Python-3.12.5.tar.xz",
-        "size": 20422396,
-        "sha256": "fa8a2e12c5e620b09f53e65bcd87550d2e5a1e2e04bf8ba991dcc55113876397",
-        "version": "3.12.5",
+        "url": "https://www.python.org/ftp/python/3.12.6/Python-3.12.6.tar.xz",
+        "size": 20434028,
+        "sha256": "1999658298cf2fb837dffed8ff3c033ef0c98ef20cf73c5d5f66bed5ab89697c",
+        "version": "3.12.6",
         "licenses": ["Python-2.0", "CNRI-Python"],
         "license_file": "LICENSE.cpython.txt",
         "python_tag": "cp312",