### 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)

]
                            }
                        }
                    },
                    "tolerations": [
                        {"key": "dynamic-pods", "operator": "Equal", "value": "true", "effect": "NoSchedule"}
                    ],
                    "nodeSelector": {"diskType": "ssd"},
                }
            },
            show_only=["templates/webserver/webserver-deployment.yaml"],
        )
        assert "Deployment" == jmespath.search("kind", docs[0])
        assert "foo" == jmespath.search(
            "spec.template.spec.affinity.nodeAffinity."
            "requiredDuringSchedulingIgnoredDuringExecution."
            "nodeSelectorTerms[0]."
            "matchExpressions[0]."
            "key",
            docs[0],
        )
        assert "ssd" == jmespath.search(
            "spec.template.spec.nodeSelector.diskType",
            docs[0],
        )
        assert "dynamic-pods" == jmespath.search(
            "spec.template.spec.tolerations[0].key",
            docs[0],
        )
    def test_should_create_default_affinity(self):