Add support for setting kubecontext

[nikhilsbhat]

What this PR does / why we need it?

"In the current version, the GetKubeClient function is designed to operate with an externally set context. When using a kube-config containing multiple cluster configurations, the context must be set outside this utility. This PR allows passing the kube-context directly, similar to how it’s specified when using tools like kubectl or helm."

PR Checklist

• [ ] This PR adds K8s exceptions (false positives)
• [x] This PR adds new code
• [ ] This PR includes tests for new/existing code
• [ ] This PR adds docs

GitHub Issue

Closes [XX-XX]

Notes for your reviewers

[yonahd]

@nikhilsbhat do you have the time to complete this?

[nikhilsbhat]

@yonahd, Oops! I completely missed this amid other tasks. I'll check it out this week.