### 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)

docs = render_chart(show_only=["templates/scheduler/scheduler-deployment.yaml"])
        assert {"component": "scheduler"} == jmespath.search(
            "spec.template.spec.affinity.podAntiAffinity."
            "preferredDuringSchedulingIgnoredDuringExecution[0]."
            "podAffinityTerm.labelSelector.matchLabels",
            docs[0],
        )
    def test_livenessprobe_values_are_configurable(self):
        docs = render_chart(
            values={
                "scheduler": {
                    "livenessProbe": {
                        "initialDelaySeconds": 111,
                        "timeoutSeconds": 222,
                        "failureThreshold": 333,
                        "periodSeconds": 444,
                        "command": ["sh", "-c", "echo", "wow such test"],
                    }
                },
            },
            show_only=["templates/scheduler/scheduler-deployment.yaml"],
        )
        assert 111 == jmespath.search(