fix: getting_started notebook fails to remove connection created

[shanecglass]

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PLEASE READ: If you have a support contract with Google, please create an issue in the support console instead of filing on GitHub. This will ensure a timely response.

Please run down the following list and make sure you've tried the usual "quick fixes":

• Search the issues already opened: https://github.com/googleapis/python-bigquery-dataframes/issues
• Search StackOverflow: https://stackoverflow.com/questions/tagged/google-cloud-platform+python

If you are still having issues, please be sure to include as much information as possible:

Environment details

• OS type and version: BigQuery Studio notebook
• Python version: python --version
• pip version: pip --version
• bigframes version: pip show bigframes

Steps to reproduce

1. Execute the cell that to removes the BigQuery Connection created
2. Cell fails to execute. This cell has the incorrect name of the default connection.

Code example

# Delete the BigQuery Connection
from google.cloud import bigquery_connection_v1 as bq_connection
client = bq_connection.ConnectionServiceClient()
CONNECTION_ID = f"projects/{PROJECT_ID}/locations/{REGION}/connections/bigframes-rf-conn"
client.delete_connection(name=CONNECTION_ID)
print("Deleted connection '{}'.".format(CONNECTION_ID))

Stack trace

---------------------------------------------------------------------------
_InactiveRpcError                         Traceback (most recent call last)
/usr/local/lib/python3.10/dist-packages/google/api_core/grpc_helpers.py in error_remapped_callable(*args, **kwargs)
     71         try:
---> 72             return callable_(*args, **kwargs)
     73         except grpc.RpcError as exc:

8 frames
_InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
	status = StatusCode.NOT_FOUND
	details = "Not found: Connection bigframes-rf-conn"
	debug_error_string = "UNKNOWN:Error received from peer ipv4:74.125.200.95:443 {created_time:"2024-01-24T17:15:42.930219567+00:00", grpc_status:5, grpc_message:"Not found: Connection bigframes-rf-conn"}"
>

The above exception was the direct cause of the following exception:

NotFound                                  Traceback (most recent call last)
/usr/local/lib/python3.10/dist-packages/google/api_core/grpc_helpers.py in error_remapped_callable(*args, **kwargs)
     72             return callable_(*args, **kwargs)
     73         except grpc.RpcError as exc:
---> 74             raise exceptions.from_grpc_error(exc) from exc
     75 
     76     return error_remapped_callable

NotFound: 404 Not found: Connection bigframes-rf-conn

Making sure to follow these steps will guarantee the quickest resolution possible.

Thanks!