**Description**

It would be nice to be able to specify resources for the `git-sync` sidecar in the helm chart values.

**Use case / motivation**

I don't want to use keda for autoscaling and would like to setup a HPA myself. However this is currently not possible since it is not possible to specify resources for the `git-sync` sidecar.

**Are you willing to submit a PR?**

Yes, I am willing to submit a PR.

**Related Issues**

Not that I know of.

chart/tests/test_pod_template_file.py
docs = render_chart(
            values={},
            show_only=["templates/pod-template-file.yaml"],
            chart_dir=self.temp_chart_dir,
        )
        assert re.search("Pod", docs[0]["kind"])
        assert {'configMap': {'name': 'RELEASE-NAME-airflow-config'}, 'name': 'config'} == jmespath.search(
            "spec.volumes[1]", docs[0]
        )
        assert {
            'name': 'config',
            'mountPath': '/opt/airflow/airflow.cfg',
            'subPath': 'airflow.cfg',
            'readOnly': True,
        } == jmespath.search("spec.containers[0].volumeMounts[1]", docs[0])
    def test_should_create_valid_affinity_and_node_selector(self):
        docs = render_chart(
            values={
                "affinity": {
                    "nodeAffinity": {
                        "requiredDuringSchedulingIgnoredDuringExecution": {
                            "nodeSelectorTerms": [
                                {
                                    "matchExpressions": [
                                        {"key": "foo", "operator": "In", "values": ["true"]},
                                    ]
                                }