## Problem
The helm chart does not implement a way for SequentialExecutor Airflow 2 deployments to serve logs; without using elasticsearch.

## Details
Prior implementations utilize the CLI function `serve_logs`. This function has been deprecated as of v2.

In `airflow/templates/scheduler/scheduler-deployment.yaml`:
```yaml
    181 {{- if and $local (not $elasticsearch) }}
    182         # Start the sidecar log server if we're in local mode and
    183         # we don't have elasticsearch enabled.
    184         - name: scheduler-logs
    185           image: {{ template "airflow_image" . }}
    186           imagePullPolicy: {{ .Values.images.airflow.pullPolicy }}
    187           args: ["serve_logs"]
```

This will cause the helm deployment to break; and the scheduler will perpetually fail to start the `scheduler-logs` container inside of the scheduler deployment.

Snippet from airflow [upgrade guide](https://airflow.apache.org/docs/apache-airflow/stable/upgrading-to-2.html).

```
Remove serve_logs command from CLI

The serve_logs command has been deleted. This command should be run only by internal application mechanisms and there is no need for it to be accessible from the CLI interface.
```

## Partial Solution
Not sure how the non-elastic method for serving logs going forward.

Astronomer branches yaml by:
```yaml
{{- if semverCompare ">=1.10.12" .Values.airflowVersion }}
...
{{- else }}
...
{{- end }}
```
airflow/cli/cli_parser.py
ActionCommand(
        name='get',
        help='Get variable',
        func=lazy_load_command('airflow.cli.commands.variable_command.variables_get'),
        args=(ARG_VAR, ARG_JSON, ARG_DEFAULT, ARG_VERBOSE),
    ),
    ActionCommand(
        name='set',
        help='Set variable',
        func=lazy_load_command('airflow.cli.commands.variable_command.variables_set'),
        args=(ARG_VAR, ARG_VAR_VALUE, ARG_JSON),
    ),
    ActionCommand(
        name='delete',
        help='Delete variable',
        func=lazy_load_command('airflow.cli.commands.variable_command.variables_delete'),
        args=(ARG_VAR,),
    ),
    ActionCommand(
        name='import',
        help='Import variables',
        func=lazy_load_command('airflow.cli.commands.variable_command.variables_import'),
        args=(ARG_VAR_IMPORT,),
    ),
    ActionCommand(
        name='export',
        help='Export all variables',
        func=lazy_load_command('airflow.cli.commands.variable_command.variables_export'),
        args=(ARG_VAR_EXPORT,),
    ),