Allow changing the log level of cluster-version-operator using API configuration

## Set the override for clusterversion to empty.```
cat <<EOF >version-patch-empty-override.yaml
- op: replace
  path: /spec/overrides
  value: []
EOF
``````
oc patch clusterversion version --type json --patch "$(cat version-patch-empty-override.yaml)"
```## Set the override to allow modifying the clusterversion operator log levels.```
cat <<EOF >version-patch-add-override.yaml
- op: add
  path: /spec/overrides/-
  value:
    group: apps/v1
    kind: Deployment
    name: cluster-version-operator
    namespace: openshift-cluster-version
    unmanaged: true
EOF
``````
oc patch clusterversion version --type json --patch "$(cat version-patch-add-override.yaml)"
```## Increase the log level for cluster-version-operator to 10```
cat <<EOF >version-patch-log-override.yaml
- op: replace
  path: /spec/template/spec/containers/0/args/3
  value: '--v=10'
EOF
``````
oc patch deployment cluster-version-operator --type json --patch "$(cat version-patch-log-override.yaml)" -n openshift-cluster-version
```