test(test_scaffold): expect canonical-path __module__ in scaffolded-connection error log

`TestScaffoldConnectionAndRun::test_run_and_not_implemented_error`
expects the agent to log a specific error line when a scaffolded
connection's ``connect()`` raises ``NotImplementedError``. The line
prints ``repr(type(connection))``, which renders the class's
``__module__``.

With this PR, ``Connection.from_config`` registers the loaded
connection module under the canonical
``packages.<author>.connections.<name>.connection`` dotted path
instead of the bare ``connection_module`` constant. So the class
is now ``<class 'packages.default_author.connections.my_con.connection.MyScaffoldAsyncConnection'>``
rather than ``<class 'connection_module.MyScaffoldAsyncConnection'>``.

Update the expected string to match.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: DIvyaNautiyal07

tests/test_connections/test_scaffold.py

@@ -88,7 +88,7 @@ def test_run_and_not_implemented_error(self):
             try:
                 proc.expect_all(
                     [
-                        "Error while connecting <class 'connection_module.MyScaffoldAsyncConnection'>: NotImplementedError()"
+                        "Error while connecting <class 'packages.default_author.connections.my_con.connection.MyScaffoldAsyncConnection'>: NotImplementedError()"
                     ],
                     timeout=50,
                 )