**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='add',
        help='Add a connection',
        func=lazy_load_command('airflow.cli.commands.connection_command.connections_add'),
        args=(ARG_CONN_ID, ARG_CONN_URI, ARG_CONN_EXTRA) + tuple(ALTERNATIVE_CONN_SPECS_ARGS),
    ),
    ActionCommand(
        name='delete',
        help='Delete a connection',
        func=lazy_load_command('airflow.cli.commands.connection_command.connections_delete'),
        args=(ARG_CONN_ID,),
    ),
    ActionCommand(
        name='export',
        help='Export all connections',
        description=("All connections can be exported in STDOUT using the following command:\n"
                     "airflow connections export -\n"
                     "The file format can be determined by the provided file extension. eg, The following "
                     "command will export the connections in JSON format:\n"
                     "airflow connections export /tmp/connections.json\n"
                     "The --format parameter can be used to mention the connections format. eg, "
                     "the default format is JSON in STDOUT mode, which can be overridden using: \n"
                     "airflow connections export - --format yaml\n"
                     "The --format parameter can also be used for the files, for example:\n"
                     "airflow connections export /tmp/connections --format json\n"),
        func=lazy_load_command('airflow.cli.commands.connection_command.connections_export'),
        args=(ARG_CONN_EXPORT, ARG_CONN_EXPORT_FORMAT,),
    ),
)