### Apache Airflow version

2.5.0

### What happened

In [Airflow 2.4.0](https://github.com/apache/airflow/blob/main/RELEASE_NOTES.rst#airflow-240-2022-09-19), a new feature was added that added an option to mask sensitive data in UI configuration page ([PR](https://github.com/apache/airflow/pull/25346)). I have set `AIRFLOW__WEBSERVER__EXPOSE_CONFIG` as `NON-SENSITIVE-ONLY`.

The feature is working partially as the `airflow.cfg` file display only has [sensitive configurations](https://github.com/apache/airflow/blob/2.5.0/airflow/configuration.py#L149-L160) marked as `< hidden >`. However, the `Running Configuration` table below the file display has all configuration set via environment variables marked as `< hidden >` which I believe is unintended.

I did not change `airflow.cfg` so the value here is displaying the default value of `False` as expected.

![Screen Shot 2023-01-05 at 1 39 11 PM](https://user-images.githubusercontent.com/5952735/210891805-1a5f6a6b-1afe-4d05-b03d-61ac583441fc.png)

The value for `expose_config` I expect to be shown as `NON-SENSITIVE-ONLY` but it shown as `< hidden >`.

![Screen Shot 2023-01-05 at 1 39 27 PM](https://user-images.githubusercontent.com/5952735/210891803-dba826d4-2d3c-4781-aeae-43c46e31fa89.png)


### What you think should happen instead

As mentioned previously, the value for `expose_config` I expect to be shown as `NON-SENSITIVE-ONLY`.

Only the [sensitive variables](https://github.com/apache/airflow/blob/2.5.0/airflow/configuration.py#L149-L160) should be set as `< hidden >`.

### How to reproduce

Set an Airflow configuration through the environment variable and check on the Configuration page.

### 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)

"""
    Generates configuration from provided template & variables defined in current scope.
    :param template: a config content templated with {{variables}}
    """
    all_vars = {k: v for d in [globals(), locals()] for k, v in d.items()}
    return template.format(**all_vars)
def get_airflow_test_config(airflow_home) -> str:
    """Get path to unittests.cfg."""
    if "AIRFLOW_TEST_CONFIG" not in os.environ:
        return os.path.join(airflow_home, "unittests.cfg")
    
    return expand_env_var(os.environ["AIRFLOW_TEST_CONFIG"])  
def _generate_fernet_key() -> str:
    from cryptography.fernet import Fernet
    return Fernet.generate_key().decode()
def initialize_config() -> AirflowConfigParser:
    """
    Load the Airflow config files.
    Called for you automatically as part of the Airflow boot process.
    """
    global FERNET_KEY, AIRFLOW_HOME
    default_config = _parameterized_config_from_template("default_airflow.cfg")
    local_conf = AirflowConfigParser(default_config=default_config)
    if local_conf.getboolean("core", "unit_test_mode"):
        
        if not os.path.isfile(TEST_CONFIG_FILE):
            from cryptography.fernet import Fernet