### Description

I am not sure why this PR was not merged (https://github.com/apache/airflow/pull/23558) but I think it would be great to add hostAliases not just to the workers, but the scheduler and webserver too.

### Use case/motivation

Be able to modify /etc/hosts in webserver and scheduler.

### Related issues

_No response_

### Are you willing to submit a 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)

}
            }
        }
        expected_topology_spread_constraints = {
            "maxSkew": 1,
            "topologyKey": "foo",
            "whenUnsatisfiable": "ScheduleAnyway",
            "labelSelector": {"matchLabels": {"tier": "airflow"}},
        }
        docs = render_chart(
            values={
                "scheduler": {
                    "affinity": expected_affinity,
                    "tolerations": [
                        {"key": "dynamic-pods", "operator": "Equal", "value": "true", "effect": "NoSchedule"}
                    ],
                    "topologySpreadConstraints": [expected_topology_spread_constraints],
                    "nodeSelector": {"type": "ssd"},
                },
                "affinity": {
                    "nodeAffinity": {
                        "preferredDuringSchedulingIgnoredDuringExecution": [
                            {
                                "weight": 1,
                                "preference": {
                                    "matchExpressions": [
                                        {"key": "not-me", "operator": "In", "values": ["true"]},
                                    ]
                                },
                            }