### Official Helm Chart version

1.10.0 (latest released)

### Apache Airflow version

2.6.3

### Kubernetes Version

1.24.10

### Helm Chart configuration

```yaml
cleanup:
  enabled: true
  securityContexts:
    container:
      allowPrivilegeEscalation: false
```

### Docker Image customizations

No

### What happened

Although securityContext value for cleanup container was set in values.yaml file, the value was not set in container.

### What you think should happen instead

_No response_

### How to reproduce

```bash
helm repo add apache-airflow https://airflow.apache.org
helm pull apache-airflow/airflow --version 1.10.0
tar -zxvf ./airflow-1.10.0.tgz
cd airflow
helm template airflow . \
--set cleanup.enabled=true \
--set cleanup.securityContexts.container.allowPrivilegeEscalation=false \
| grep "# Source: airflow/templates/cleanup/cleanup-cronjob.yaml" -A99
```


### Anything else

There is no <code>containerSecurityContext</code> in cleanup-cronjob.yaml.
https://github.com/apache/airflow/blob/eed2901e877b32a211e0e74bc9d69fc11e552f2a/chart/templates/cleanup/cleanup-cronjob.yaml#L23-L28

But we can see <code>containerSecurityContext</code> in webserver-deployment.yaml
https://github.com/apache/airflow/blob/eed2901e877b32a211e0e74bc9d69fc11e552f2a/chart/templates/webserver/webserver-deployment.yaml#L29

### Are you willing to submit PR?

- [X] Yes I am willing to submit a PR!

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)

"""Tests SC Backward Compatibility."""
    def test_check_deployments_and_jobs(self):
        docs = render_chart(
            values={
                "uid": 3000,
                "gid": 30,
                "webserver": {"defaultUser": {"enabled": True}},
                "flower": {"enabled": True},
                "airflowVersion": "2.2.0",
                "executor": "CeleryKubernetesExecutor",
            },
            show_only=[
                "templates/flower/flower-deployment.yaml",
                "templates/scheduler/scheduler-deployment.yaml",
                "templates/triggerer/triggerer-deployment.yaml",
                "templates/webserver/webserver-deployment.yaml",
                "templates/workers/worker-deployment.yaml",
                "templates/jobs/create-user-job.yaml",
                "templates/jobs/migrate-database-job.yaml",
            ],
        )
        for doc in docs:
            assert 3000 == jmespath.search("spec.template.spec.securityContext.runAsUser", doc)
            assert 30 == jmespath.search("spec.template.spec.securityContext.fsGroup", doc)
    def test_check_statsd_uid(self):