### Apache Airflow Provider(s)

microsoft-azure

### Versions of Apache Airflow Providers

apache-airflow-providers-microsoft-azure==2.0.0

### Apache Airflow version

2.1.0

### Operating System

Debian GNU/Linux

### Deployment

Astronomer

### Deployment details

_No response_

### What happened

Related to #18124.

When attempting to connect to Azure Batch, the following exception is thrown even though the corresponding "Azure Batch Account URl" field is populated in the Azure Batch connection form:
```
airflow.exceptions.AirflowException: Extra connection option is missing required parameter: `account_url`
```
Airflow Connection:
![image](https://user-images.githubusercontent.com/48934154/134413597-260987e9-3035-4ced-a329-3af1129e4ae9.png)


### What you expected to happen

Airflow tasks should be able to connect to Azure Batch when properly populating the custom connection form. Or, at the very least, the above exception should not be thrown when an Azure Batch Account URL is provided in the connection.

### How to reproduce

1. Install the Microsoft Azure provider and create an Airflow Connection with the type Azure Batch
2. Provide values for at least "Azure Batch Account URl"
3. Finally execute a task which uses the AzureBatchHook

### Anything else

The get_required_param() method is being passed a value of "auth_method" from the `Extra` field in the connection form. The `Extra` field is no longer exposed in the connection form and would never be able to be provided.
```python
def _get_required_param(name):
        """Extract required parameter from extra JSON, raise exception if not found"""
        value = conn.extra_dejson.get(name)
        if not value:
           raise AirflowException(f'Extra connection option is missing required parameter: `{name}`')
        return value
...

batch_account_url = _get_required_param('account_url') or _get_required_param(
    'extra__azure_batch__account_url'
)
```

### Are you willing to submit PR?

- [X] Yes I am willing to submit a PR!

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)

airflow/providers/microsoft/azure/hooks/azure_batch.py
self,
        job_id: str,
        pool_id: str,
        display_name: Optional[str] = None,
        **kwargs,
    ) -> JobAddParameter:
        """
        Configures a job for use in the pool
        :param job_id: A string that uniquely identifies the job within the account
        :type job_id: str
        :param pool_id: A string that identifies the pool
        :type pool_id: str
        :param display_name: The display name for the job
        :type display_name: str
        """
        job = batch_models.JobAddParameter(
            id=job_id,
            pool_info=batch_models.PoolInformation(pool_id=pool_id),
            display_name=display_name,
            **kwargs,
        )
        return job
    def create_job(self, job: JobAddParameter) -> None: