bug: Prometheus operator is restarted continuously

[mglotov]

Prerequisites

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• I am running the latest version
• I checked the documentation and found no answer
• I checked to make sure that this issue has not already been filed

Failure Information (for bugs)

Prometheus operator logs:

level=warn ts=2022-04-07T04:18:42.309512403Z caller=klog.go:108 component=k8s_client_runtime func=Warningf msg="pkg/mod/k8s.io/client-go@v0.23.0/tools/cache/reflector.go:167: failed to list *v1.ThanosRuler: the server could not find the requested resource (get thanosrulers.monitoring.coreos.com)"
level=error ts=2022-04-07T04:18:42.309555124Z caller=klog.go:116 component=k8s_client_runtime func=ErrorDepth msg="pkg/mod/k8s.io/client-go@v0.23.0/tools/cache/reflector.go:167: Failed to watch *v1.ThanosRuler: failed to list *v1.ThanosRuler: the server could not find the requested resource (get thanosrulers.monitoring.coreos.com)"
level=warn ts=2022-04-07T04:19:21.236500825Z caller=klog.go:108 component=k8s_client_runtime func=Warningf msg="pkg/mod/k8s.io/client-go@v0.23.0/tools/cache/reflector.go:167: failed to list *v1.ThanosRuler: the server could not find the requested resource (get thanosrulers.monitoring.coreos.com)"
level=error ts=2022-04-07T04:19:21.236850084Z caller=klog.go:116 component=k8s_client_runtime func=ErrorDepth msg="pkg/mod/k8s.io/client-go@v0.23.0/tools/cache/reflector.go:167: Failed to watch *v1.ThanosRuler: failed to list *v1.ThanosRuler: the server could not find the requested resource (get thanosrulers.monitoring.coreos.com)"

Steps to Reproduce

Enable kube-prometheus-stack (and disable victoriametrics)