### Description of the change
This pr add quotes to values for _nodeSelector_ entries. This is needed if the value is a _boolean_. An example is using [Spot VMs](https://cloud.google.com/kubernetes-engine/docs/concepts/spot-vms) on _GCP_:
````
apiVersion: v1
kind: Pod
spec:
nodeSelector:
cloud.google.com/gke-spot: "true"
````
Currently, the Chart uses the _toYaml_ function when adding the _nodeSelector_ values, however, _toYaml_ does not quote the values as discussed [here](https://github.com/helm/helm/issues/4262).
The same issue, for ingress configurations, was discussed in [this issue](https://gitea.com/gitea/helm-chart/issues/483), and fixed in [this PR](https://gitea.com/gitea/helm-chart/pulls/497).
### Benefits
Allows the usage of _boolean_ values for _nodeSelectors_.
### Possible drawbacks
None known.
Co-authored-by: tobias.petersen <tobias.petersen@unity3d.com>
Co-authored-by: pat-s <pat-s@noreply.gitea.com>
Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/796
Reviewed-by: pat-s <pat-s@noreply.gitea.com>
Co-authored-by: tobiasbp <tobiasbp@noreply.gitea.com>
Co-committed-by: tobiasbp <tobiasbp@noreply.gitea.com>
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