Serverless Activator fails with "Failed to append ca cert to the RootCAs"

Issue

• When internal encryption is enabled for OpenShift Serverless, after an update to OpenShift Serverless 1.30.0 the Activator Pod is in CrashLoopBackOff due to the following issue:

  2023/09/19 05:40:12 Registering 3 clients
  2023/09/19 05:40:12 Registering 3 informer factories
  2023/09/19 05:40:12 Registering 3 informers
  {"severity":"INFO","timestamp":"2023-09-19T05:40:12.749552011Z","caller":"logging/config.go:80","message":"Unable to read vcs.revision from binary"}
  {"severity":"INFO","timestamp":"2023-09-19T05:40:13.189667817Z","logger":"activator","caller":"activator/main.go:141","message":"Starting the knative activator","knative.dev/controller":"activator","knative.dev/pod":"activator-d8f98846f-grmnc"}
  {"severity":"INFO","timestamp":"2023-09-19T05:40:13.19503527Z","logger":"activator","caller":"activator/main.go:169","message":"Internal Encryption is enabled","knative.dev/controller":"activator","knative.dev/pod":"activator-d8f98846f-grmnc"}
  {"severity":"EMERGENCY","timestamp":"2023-09-19T05:40:13.216067405Z","logger":"activator","caller":"activator/main.go:181","message":"Failed to append ca cert to the RootCAs","knative.dev/controller":"activator","knative.dev/pod":"activator-d8f98846f-grmnc","stacktrace":"main.main\n\t/remote-source/knative-serving/app/cmd/activator/main.go:181\nruntime.main\n\t/usr/lib/golang/src/runtime/proc.go:250"}