helm install Error using default controllerManagerConfigYaml

[B1F030]

What happened:
When using Helm to install kueue, Error happens:
# helm install kueue kueue/ --namespace kueue-system

Error: INSTALLATION FAILED: template: kueue/templates/webhook/webhook.yaml:120:84:
executing "kueue/templates/webhook/webhook.yaml" at <$integrationsConfig.podOptions>:
wrong type for value; expected map[string]interface {}; got interface {}

in webhook.yaml#L120:

{{- if and (hasKey $integrationsConfig "podOptions") (hasKey $integrationsConfig.podOptions "namespaceSelector") }}

When integrations.podOptions is not set(by default), the expression above caused this Error below:

$integrationsConfig.podOptions got interface {}

What you expected to happen:
This Error shoud not happen when default config is used.

How to reproduce it (as minimally and precisely as possible):

$ git clone https://github.com/kubernetes-sigs/kueue.git
$ cd kueue/charts
$ helm install kueue kueue/ --create-namespace --namespace kueue-system

Anything else we need to know?:
related PR:
#1247

Environment:

• Kubernetes version (use kubectl version):
• Kueue version (use git describe --tags --dirty --always): main
• Cloud provider or hardware configuration:
• OS (e.g: cat /etc/os-release):
• Kernel (e.g. uname -a):
• Install tools:
• Others:

[stuton]

/assign