### 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(
            values={
                "webserver": {
                    "waitForMigrations": {"enabled": False},
                },
            },
            show_only=["templates/webserver/webserver-deployment.yaml"],
        )
        actual = jmespath.search("spec.template.spec.initContainers", docs[0])
        assert actual is None
    def test_should_add_extra_init_containers(self):
        docs = render_chart(
            values={
                "webserver": {
                    "extraInitContainers": [
                        {"name": "test-init-container", "image": "test-registry/test-repo:test-tag"}
                    ],
                },
            },
            show_only=["templates/webserver/webserver-deployment.yaml"],
        )
        assert {
            "name": "test-init-container",
            "image": "test-registry/test-repo:test-tag",
        } == jmespath.search("spec.template.spec.initContainers[-1]", docs[0])
    def test_should_add_component_specific_labels(self):