Temporarily remove version from latest changelog entry

We're not quite ready for the release, yet. Turns out we're not passing all the  typeshed tests under 3.12, yet. Current results:

```
Ran pytype with 4667 pyis, got 6 errors.

stdlib/asynchat.pyi (3.12): pytype.load_pytd.BadDependencyError: Can't find pyi for 'asyncore', referenced from 'asynchat'

stdlib/distutils/cmd.pyi (3.12): pytype.load_pytd.BadDependencyError: No command.bdist_dumb.bdist_dumb in module distutils, referenced from 'distutils.cmd'

stdlib/distutils/command/__init__.pyi (3.12): pytype.load_pytd.BadDependencyError: Unreplaced NamedType: 'distutils.command.bdist_dumb', referenced from 'distutils.command'

stdlib/distutils/command/build_scripts.pyi (3.12): pytype.load_pytd.BadDependencyError: No Mixin2to3 in module distutils.util, referenced from 'distutils.command.build_scripts'

stdlib/distutils/cygwinccompiler.pyi (3.12): pytype.load_pytd.BadDependencyError: No unixccompiler.UnixCCompiler in module distutils, referenced from 'distutils.cygwinccompiler'

stdlib/smtpd.pyi (3.12): AttributeError: Class not found: asyncore.dispatcher
```

PiperOrigin-RevId: 673415529

CHANGELOG

@@ -1,4 +1,4 @@
-Version 2024.09.11:
+Version (upcoming):
 
 Updates:
 * Basic support for Python 3.12.