**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
"After completing the dag run, prints a diagram on the screen for the "
        "current DAG Run using the imgcat tool.\n"
    ),
    action='store_true')
ARG_SAVE_DAGRUN = Arg(
    ("--save-dagrun", ),
    help=(
        "After completing the backfill, saves the diagram for current DAG Run to the indicated file.\n"
        "\n"
    ))
ARG_TREE = Arg(
    ("-t", "--tree"),
    help="Tree view",
    action="store_true")
ARG_UPSTREAM = Arg(
    ("-u", "--upstream"),
    help="Include upstream tasks",
    action="store_true")
ARG_ONLY_FAILED = Arg(
    ("-f", "--only-failed"),
    help="Only failed jobs",
    action="store_true")
ARG_ONLY_RUNNING = Arg(
    ("-r", "--only-running"),
    help="Only running jobs",
    action="store_true")
ARG_DOWNSTREAM = Arg(
    ("-d", "--downstream"),
    help="Include downstream tasks",
    action="store_true")