**Apache Airflow version**: 1.10.12

**Kubernetes version** : 1.17.9

**Environment**:

- **Cloud provider or hardware configuration**: Azure Kubernetes Service
- **OS** (e.g. from /etc/os-release): Linux
- **Install tools**: Helm chart (/chart in repo) 
- **Others**:

**What happened**:
Pod cannot run since `airflow-cleanup-pods` is not in $PATH
```
Error: failed to start container "airflow-cleanup-pods": Error response from daemon: OCI runtime create failed: container_linux.go:349: starting container process caused "exec: \"airflow-cleanup-pods\": executable file not found in $PATH": unknown
```

**What you expected to happen**: 
Cleanup job pod runs

<!-- What do you think went wrong? -->

**How to reproduce it**:
* Deploy Helm Chart
* Manually trigger `airflow-cleanup ` CronJob 
* See it cannot run since `airflow-cleanup-pods` is not in $PATH
airflow/cli/cli_parser.py
),
    ActionCommand(
        name='test',
        help="Test a task instance",
        description=(
            "Test a task instance. This will run a task without checking for dependencies or recording "
            "its state in the database"
        ),
        func=lazy_load_command('airflow.cli.commands.task_command.task_test'),
        args=(
            ARG_DAG_ID, ARG_TASK_ID, ARG_EXECUTION_DATE, ARG_SUBDIR, ARG_DRY_RUN,
            ARG_TASK_PARAMS, ARG_POST_MORTEM, ARG_ENV_VARS
        ),
    ),
    ActionCommand(
        name='states-for-dag-run',
        help="Get the status of all task instances in a dag run",
        func=lazy_load_command('airflow.cli.commands.task_command.task_states_for_dag_run'),
        args=(ARG_DAG_ID, ARG_EXECUTION_DATE, ARG_OUTPUT),
    ),
)
POOLS_COMMANDS = (
    ActionCommand(
        name='list',
        help='List pools',
        func=lazy_load_command('airflow.cli.commands.pool_command.pool_list'),
        args=(ARG_OUTPUT,),
    ),
    ActionCommand(
        name='get',