This is a clone of issue OCPBUGS-22487. The following is the description of the original issue:
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Description of problem:

The customer has a custom apiserver certificate.

This error can be found while trying to uninstall any operator by console:

openshift-console/pods/console-56494b7977-d7r76/console/console/logs/current.log:

2023-10-24T14:13:21.797447921+07:00 E1024 07:13:21.797400 1 operands_handler.go:67] Failed to get new client for listing operands: Get "https://api.<cluster>.<domain>:6443/api?timeout=32s": x509: certificate signed by unknown authority

when trying the same request from the console pod we can see no issue.

We see the root ca that signs apiserver certificate and this CA is trusted in the pod.

It seems the code that provokes this issue is:

https://github.com/openshift/console/blob/master/pkg/server/operands_handler.go#L62-L70