CHART: add an opportunity to setup custom value for dnsPolicy #37

Issue submitter TODO list

• I've looked up my issue in FAQ
• I've searched for an already existing issues here (legacy) and here
• I've tried installing latest charts and the issue still persists there
• I'm running a supported version of the application & chart which is listed here

Feature request

Hi Team,

I’d like to contribute to the Kafka-UI Helm chart but currently don’t have access to create a branch for review.

Proposed Implementation:

I’ve identified the need to make the dnsPolicy value customizable in the Deployment for Kafka-UI.
The changes would look like this:

templates/deployment.yaml:

dnsPolicy: {{ .Values.dnsPolicy }}  

values.yaml:

## @param dnsPolicy for Kafka-UI pods  
## ref: https://kubernetes.io/docs/concepts/services-networking/dns-pod-service/  
##  
dnsPolicy: "ClusterFirst" 

Additionally, I noticed some trailing spaces during local testing. While not critical, for better code quality.

Expected behavior

dnsPolicy: {{ .Values.dnsPolicy }}  

will allow users to configure the DNS policy directly through values, adding flexibility to the chart.

Your installation details

1. commit sha: a5d34a702017539ce10300628a508120aa372f58
2. chart version: 1.4.11
3. config: as default, nothing special