### 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}, "dags": {"gitSync": {"enabled": True}}},
            show_only=["templates/dag-processor/dag-processor-deployment.yaml"],
        )
        assert "git-sync" in [c["name"] for c in jmespath.search("spec.template.spec.containers", docs[0])]
        assert "git-sync-init" in [
            c["name"] for c in jmespath.search("spec.template.spec.initContainers", docs[0])
        ]
    def test_dags_gitsync_with_persistence_no_sidecar_or_init_container(self):
        docs = render_chart(
            values={
                "dagProcessor": {"enabled": True},
                "dags": {"gitSync": {"enabled": True}, "persistence": {"enabled": True}},
            },
            show_only=["templates/dag-processor/dag-processor-deployment.yaml"],
        )
        
        assert "git-sync" not in [
            c["name"] for c in jmespath.search("spec.template.spec.containers", docs[0])
        ]
        assert "git-sync-init" not in [
            c["name"] for c in jmespath.search("spec.template.spec.initContainers", docs[0])
        ]
    def test_no_airflow_local_settings(self):