Prevent default credentials

[sgherdao]

Description

When deploying and using default credentials the deployment fails

Expected Behavior

deployment successful

Actual Behavior

Got a traceback, it would appear vManage doesn't like re-using default credentials

❯ csdwan deploy 20.15.1
SD-WAN Manager IP address: ...
SD-WAN Manager user: admin
SD-WAN Manager password: admin  (hidden)
SD-WAN Manager subnet mask (e.g. /24): /27
SD-WAN Manager gateway IP: ...
Waiting for SD-WAN Manager API (attempt 30)...WARNING - Cannot determine session type for tenancy-mode: None, user-mode: None, view-mode: None
Configuring basic settings...Traceback (most recent call last):
  File "~/catalyst-sdwan-lab--iY71hTS-py3.12/bin/csdwan", line 6, in <module>
    sys.exit(cli())
             ^^^^^
  File "~/catalyst-sdwan-lab--iY71hTS-py3.12/lib/python3.12/site-packages/rich_click/rich_command.py", line 367, in __call__
    return super().__call__(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/catalyst-sdwan-lab--iY71hTS-py3.12/lib/python3.12/site-packages/click/core.py", line 1158, in __call__
    return self.main(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/catalyst-sdwan-lab--iY71hTS-py3.12/lib/python3.12/site-packages/rich_click/rich_command.py", line 152, in main
    rv = self.invoke(ctx)
         ^^^^^^^^^^^^^^^^
  File "~/catalyst-sdwan-lab--iY71hTS-py3.12/lib/python3.12/site-packages/click/core.py", line 1694, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/catalyst-sdwan-lab--iY71hTS-py3.12/lib/python3.12/site-packages/click/core.py", line 1440, in invoke
    return ctx.invoke(self.callback, **ctx.params)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/catalyst-sdwan-lab--iY71hTS-py3.12/lib/python3.12/site-packages/click/core.py", line 785, in invoke
    return __callback(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/sdwan-lab-deployment-tool/catalyst_sdwan_lab/cli.py", line 169, in wrapper_common_options
    return f(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^
  File "~/sdwan-lab-deployment-tool/catalyst_sdwan_lab/cli.py", line 191, in wrapper_common_options
    return f(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^
  File "~/catalyst-sdwan-lab--iY71hTS-py3.12/lib/python3.12/site-packages/click/decorators.py", line 33, in new_func
    return f(get_current_context(), *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/sdwan-lab-deployment-tool/catalyst_sdwan_lab/cli.py", line 263, in cli_deploy
    deploy.main(
  File "~/sdwan-lab-deployment-tool/catalyst_sdwan_lab/tasks/deploy.py", line 173, in main
    configure_manager_basic_settings(manager_session, ca_chain, log)
  File "~/sdwan-lab-deployment-tool/catalyst_sdwan_lab/tasks/utils.py", line 145, in configure_manager_basic_settings
    if manager_config_settings.get_organizations().first().org is None:
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/catalyst-sdwan-lab--iY71hTS-py3.12/lib/python3.12/site-packages/catalystwan/endpoints/__init__.py", line 547, in wrapper
    response = _self._request(
               ^^^^^^^^^^^^^^^
  File "~/catalyst-sdwan-lab--iY71hTS-py3.12/lib/python3.12/site-packages/catalystwan/endpoints/__init__.py", line 222, in _request
    return self._client.request(method, self._basepath + url, **_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/catalyst-sdwan-lab--iY71hTS-py3.12/lib/python3.12/site-packages/catalystwan/session.py", line 356, in request
    raise DefaultPasswordError("Password must be changed to use this session.")
catalystwan.exceptions.DefaultPasswordError: Password must be changed to use this session.


## Affected Version

2.0.14

## Steps to Reproduce

run csdwan deploy and use admin/admin as credentails

## Checklist

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- [x] I have read the [contributing guidelines](/CONTRIBUTING.md)
- [x] I have verified this does not duplicate an existing issue

[tzarski0]

We should make sure we do not allow users to run the script with admin/admin credentials. When that happens we should exit and let user know they should not use default credentials.