[BUG] default function treats boolean false as not defined, and applies default

[YTGhost]

Describe the bug
As mentioned in title, default helm function works weird and threats false as undefined and applies default value when I expect false. The Helm community has similar discussions as well: helm/helm#12080

So for the deployment.yaml in the Helm template, the template settings for the following two parameters will cause the value to always be true.

- "--apps={{- default "true" .Values.controllers.apps.enabled }}"
- "--workloads={{- default "true" .Values.controllers.workloads.enabled }}"

To Reproduce
When installing KubeBlocks charts using helm install and setting parameter values such as --set controllers.workloads.enabled=false, the value will not be set to false.

Expected behavior
For the two parameters mentioned in the description, users should be able to set the desired boolean values, rather than them always being true.