### Apache Airflow Provider(s)

microsoft-azure

### Versions of Apache Airflow Providers

apache-airflow-providers-microsoft-azure==3.1.1

### Apache Airflow version

2.1.2

### Operating System

OSX 

### Deployment

Docker-Compose

### Deployment details

_No response_

### What happened

`_get_blob_client` method in the wasb hook is trying to create a container


### What you expected to happen

I expect to get a container client of an existing container

### How to reproduce

_No response_

### Anything else

I believe the fix is minor, e.g.

```
def _get_blob_client(self, container_name: str, blob_name: str) -> BlobClient:
        """
        Instantiates a blob client

        :param container_name: The name of the blob container
        :type container_name: str
        :param blob_name: The name of the blob. This needs not be existing
        :type blob_name: str
        """
        container_client = self.create_container(container_name)
        return container_client.get_blob_client(blob_name)
```

should be changed to 

```
def _get_blob_client(self, container_name: str, blob_name: str) -> BlobClient:
        """
        Instantiates a blob client

        :param container_name: The name of the blob container
        :type container_name: str
        :param blob_name: The name of the blob. This needs not be existing
        :type blob_name: str
        """
        container_client = self._get_container_client(container_name)
        return container_client.get_blob_client(blob_name)
```


### 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/wasb.py
"""Returns custom field behaviour"""
        return {
            "hidden_fields": ['schema', 'port', 'host'],
            "relabeling": {
                'login': 'Blob Storage Login (optional)',
                'password': 'Blob Storage Key (optional)',
                'host': 'Account Name (Active Directory Auth)',
            },
            "placeholders": {
                'extra': 'additional options for use with FileService and AzureFileVolume',
                'login': 'account name',
                'password': 'secret',
                'host': 'account url',
                'extra__wasb__connection_string': 'connection string auth',
                'extra__wasb__tenant_id': 'tenant',
                'extra__wasb__shared_access_key': 'shared access key',
                'extra__wasb__sas_token': 'account url or token',
            },
        }
    def __init__(self, wasb_conn_id: str = default_conn_name, public_read: bool = False) -> None: