Code generation failed using github-actions

I tried the following code from the example in order to generate the scripts for github-actions. It errors out when validating the project_number parameter.

```
AutoMLOps.generate(project_id=PROJECT_ID,
pipeline_params=pipeline_params,
use_ci=True,
naming_prefix=MODEL_ID,
deployment_framework= 'github-actions',
project_number="666724832485",
schedule_pattern='59 11 * * 0', # retrain every Sunday at Midnight
setup_model_monitoring=True # use this if you would like to use Vertex Model Monitoring
)
```

The error message:

```
ValidationError: 3 validation errors for GitHubActionsConfig
workload_identity_pool
Input should be a valid string [type=string_type, input_value=None, input_type=NoneType]
For further information visit https://errors.pydantic.dev/2.3/v/string_type
workload_identity_provider
Input should be a valid string [type=string_type, input_value=None, input_type=NoneType]
For further information visit https://errors.pydantic.dev/2.3/v/string_type
workload_identity_service_account
Input should be a valid string [type=string_type, input_value=None, input_type=NoneType]
For further information visit https://errors.pydantic.dev/2.3/v/string_type
```

Start by reproducing the example AutoMLOps.generate call with deployment_framework set to github-actions and inspect the GitHubActionsConfig validation named in the traceback. Trace how project_number and the workload identity fields reach that configuration. Done means the reported example validates successfully or the required inputs are clearly reported.

Written by the indexing model from the issue text.