Updated imagePullSecrets to be empty in values.yaml file and it will use the default one for drift detection to works properly

General MR

Summary

This MR is to fix the error when enabled the driftDetection on helmrelease file. two private-registry was assigned to imagePullSecrets, one in values.yaml and another in default value in Bigbang umbrella.

Relevant logs/screenshots

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Linked Issue

issue

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