### Description

Support mounting to multiple namespaces with the Hashicorp Vault Secrets Back-end

### Use case/motivation

As a data engineer I wish to utilize secrets stored in multiple mount paths (to support connecting to multiple namespaces)  without having to mount to a higher up namespace.

### Related issues

_No response_

### Are you willing to submit a PR?

- [ ] 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)

"""
        Get Airflow Variable
        :param key: Variable Key
        :return: Variable Value retrieved from the vault
        """
        if self.variables_path is None:
            return None
        else:
            secret_path = self.build_path(self.variables_path, key)
            response = self.vault_client.get_secret(secret_path=secret_path)
            return response.get("value") if response else None
    def get_config(self, key: str) -> str | None:
        """
        Get Airflow Configuration
        :param key: Configuration Option Key
        :return: Configuration Option Value retrieved from the vault
        """
        if self.config_path is None:
            return None
        else:
            secret_path = self.build_path(self.config_path, key)
            response = self.vault_client.get_secret(secret_path=secret_path)
            return response.get("value") if response else None