## 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
description=(
            "Run subsections of a DAG for a specified date range. If reset_dag_run option is used, "
            "backfill will first prompt users whether airflow should clear all the previous dag_run and "
            "task_instances within the backfill date range. If rerun_failed_tasks is used, backfill "
            "will auto re-run the previous failed task instances  within the backfill date range"
        ),
        func=lazy_load_command('airflow.cli.commands.dag_command.dag_backfill'),
        args=(
            ARG_DAG_ID,
            ARG_TASK_REGEX,
            ARG_START_DATE,
            ARG_END_DATE,
            ARG_MARK_SUCCESS,
            ARG_LOCAL,
            ARG_DONOT_PICKLE,
            ARG_YES,
            ARG_BF_IGNORE_DEPENDENCIES,
            ARG_BF_IGNORE_FIRST_DEPENDS_ON_PAST,
            ARG_SUBDIR,
            ARG_POOL,
            ARG_DELAY_ON_LIMIT,
            ARG_DRY_RUN,
            ARG_VERBOSE,
            ARG_CONF,
            ARG_RESET_DAG_RUN,
            ARG_RERUN_FAILED_TASKS,
            ARG_RUN_BACKWARDS,
        ),
    ),
    ActionCommand(