Verified passed on latest 4.8.0-0.nightly

[coreos-assembler]$ oc get clusterversion
NAME      VERSION                             AVAILABLE   PROGRESSING   SINCE   STATUS
version   4.8.0-0.nightly-2022-06-17-175848   True        False         17m     Cluster version is 4.8.0-0.nightly-2022-06-17-175848

[coreos-assembler]$ oc -n openshift-machine-api get machinesets
NAME                                 DESIRED   CURRENT   READY   AVAILABLE   AGE
ci-ln-1z1b4zk-72292-c2c79-worker-a   1         1         1       1           42m
ci-ln-1z1b4zk-72292-c2c79-worker-b   1         1         1       1           42m
ci-ln-1z1b4zk-72292-c2c79-worker-c   1         1         1       1           42m
ci-ln-1z1b4zk-72292-c2c79-worker-f   0         0                             42m

[coreos-assembler]$ oc -n openshift-machine-api get machinesets/ci-ln-1z1b4zk-72292-c2c79-worker-a -o yaml | grep image
            image: projects/rhcos-cloud/global/images/rhcos-48-84-202206140145-0-gcp-x86-64

matches snippet from boot image bump in https://github.com/openshift/installer/pull/5987

    "gcp": {
        "image": "rhcos-48-84-202206140145-0-gcp-x86-64",
        "project": "rhcos-cloud",
        "url": "https://storage.googleapis.com/rhcos/rhcos/rhcos-48-84-202206140145-0-gcp-x86-64.tar.gz"
    },

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (OpenShift Container Platform 4.8.45 bug fix update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:5167