Bump to CPython 3.14.0b3

Author: zanieb

pythonbuild/downloads.py

@@ -82,10 +82,10 @@
         "python_tag": "cp313",
     },
     "cpython-3.14": {
-        "url": "https://www.python.org/ftp/python/3.14.0/Python-3.14.0b2.tar.xz",
-        "size": 23579860,
-        "sha256": "7ac9e84844bbc0a5a8f1f79a37a68b3b8caf2a58b4aa5999c49227cb36e70ea6",
-        "version": "3.14.0b2",
+        "url": "https://www.python.org/ftp/python/3.14.0/Python-3.14.0b3.tar.xz",
+        "size": 23626928,
+        "sha256": "c6f48bf51f01f50d87007a445dd7afe4a4c7a87ab482570be924c1ddfd0d3682",
+        "version": "3.14.0b3",
         "licenses": ["Python-2.0", "CNRI-Python"],
         "license_file": "LICENSE.cpython.txt",
         "python_tag": "cp314",