Resolve deprecation warnings in Google Kubernetes Engine system tests (#39485)

[topherinternational]

Reworks the GKE example DAGs to remove deprecation warnings, also fixes a misprint in the deprecation warning message.

related: #39485

@VladaZakharova requested to be tagged for Google provider changes

@Taragolis as issue owner

[MaksYermak]

@topherinternational did you try to run this DAG on your Google Cloud environment?
Because I got this error when I tried to run this DAG:

[2024-08-21T12:13:25.226+0000] {taskinstance.py:3296} ERROR - Task failed with exception
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/google/api_core/grpc_helpers.py", line 76, in error_remapped_callable
    return callable_(*args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/grpc/_channel.py", line 1181, in __call__
    return _end_unary_response_blocking(state, call, False, None)
  File "/usr/local/lib/python3.8/site-packages/grpc/_channel.py", line 1006, in _end_unary_response_blocking
    raise _InactiveRpcError(state)  # pytype: disable=not-instantiable
grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
	status = StatusCode.INVALID_ARGUMENT
	details = "Node_pool.name must be specified."
	debug_error_string = "UNKNOWN:Error received from peer ipv4:66.102.1.95:443 {created_time:"2024-08-21T12:13:25.224438184+00:00", grpc_status:3, grpc_message:"Node_pool.name must be specified."}"
>

in my opinion it means that this Cluster configuration is incorrect

[eladkal]

@topherinternational @VladaZakharova what is the status of this PR?

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in 5 days if no further activity occurs. Thank you for your contributions.

[VladaZakharova]

@topherinternational @VladaZakharova what is the status of this PR?

Hi! Waiting for @topherinternational to answer Max's question, since we think the system test will not work correctly with such configuration

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in 5 days if no further activity occurs. Thank you for your contributions.