### Official Helm Chart version

1.10.0 (latest released)

### Apache Airflow version

2.6.3

### Kubernetes Version

1.27

### Helm Chart configuration

helm chart doesn't support securityContext for airflow-run-airflow-migration and dag-processor init container

### Docker Image customizations

_No response_

### What happened

_No response_

### What you think should happen instead

_No response_

### How to reproduce

helm chart doesn't support securityContext  for airflow-run-airflow-migration and dag-processor init container. 

### Anything else

_No response_

### Are you willing to submit PR?

- [ ] 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)

docs = render_chart(
            values={"dagProcessor": {"enabled": True}, "airflowLocalSettings": None},
            show_only=["templates/dag-processor/dag-processor-deployment.yaml"],
        )
        volume_mounts = jmespath.search("spec.template.spec.containers[0].volumeMounts", docs[0])
        assert "airflow_local_settings.py" not in str(volume_mounts)
        volume_mounts_init = jmespath.search("spec.template.spec.containers[0].volumeMounts", docs[0])
        assert "airflow_local_settings.py" not in str(volume_mounts_init)
    def test_airflow_local_settings(self):
        docs = render_chart(
            values={"dagProcessor": {"enabled": True}, "airflowLocalSettings": "# Well hello!"},
            show_only=["templates/dag-processor/dag-processor-deployment.yaml"],
        )
        volume_mount = {
            "name": "config",
            "mountPath": "/opt/airflow/config/airflow_local_settings.py",
            "subPath": "airflow_local_settings.py",
            "readOnly": True,
        }
        assert volume_mount in jmespath.search("spec.template.spec.containers[0].volumeMounts", docs[0])
        assert volume_mount in jmespath.search("spec.template.spec.initContainers[0].volumeMounts", docs[0])
    def test_should_add_component_specific_annotations(self):