UserWorkloadMonitoring prometheus pods crashing due to invalid variable in RHOCP4

Issue

Prometheus pod under openshift-user-workload-montoring namespace crashing.

$ oc get pods | grep -i prometheus-user-workload

prometheus-user-workload-0            0/6     Init:CrashLoopBackOff   6          17m
prometheus-user-workload-1            0/6     Init:CrashLoopBackOff   5          12m

$ oc get pods prometheus-user-workload-0  -o yaml

 ...
 ...
          terminated:
        containerID: cri-o://xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
        exitCode: 1
        finishedAt: "2023-11-13T12:54:50Z"
        message: |
          level=info ts=2023-11-13T12:54:50.903025602Z caller=main.go:111 msg="Starting prometheus-config-reloader" version="(version=0.60.1, branch=rhaos-4.12-rhel-8, revision=6e20871)"
          level=info ts=2023-11-13T12:54:50.903108902Z caller=main.go:112 build_context="(go=go1.19.13 X:strictfipsruntime, user=root, date=20231020-18:56:32)"
          expand environment variables: found reference to unset environment variable "application"
        reason: Error
        startedAt: "2023-11-13T12:54:50Z"
...
...