When adding custom API server certificate to the Hosted Cluster, the bootstrap-kubeconfig is no longer trusted in RHOCP4

Issue

• Custom API certificates were rolled out for a Hosted Control Plane (HCP) cluster in RHOCP4, but failing with the following error:

  tls: failed to verify certificate: x509: certificate signed by unknown authority
  

• Error persists despite root CA is present in /etc/pki/ca-trust/source/anchors/.