### 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}, "schedulerName": "airflow-scheduler"},
            show_only=["templates/dag-processor/dag-processor-deployment.yaml"],
        )
        assert "airflow-scheduler" == jmespath.search(
            "spec.template.spec.schedulerName",
            docs[0],
        )
    def test_should_create_valid_affinity_tolerations_and_node_selector(self):
        docs = render_chart(
            values={
                "dagProcessor": {
                    "enabled": True,
                    "affinity": {
                        "nodeAffinity": {
                            "requiredDuringSchedulingIgnoredDuringExecution": {
                                "nodeSelectorTerms": [
                                    {
                                        "matchExpressions": [
                                            {"key": "foo", "operator": "In", "values": ["true"]},
                                        ]
                                    }