Drop unused configmaps/status permission + configurable binary path

Configmaps have no status; omiting this to avoid operator having to
be granted that non existing subresource:
https://github.com/kubernetes/kubernetes/blob/v1.31.2/pkg/apis/core/types.go#L1722-L1743
```
$ kubectl get configmap --subresource status myconfigmap        # k8s v1.28
Error from server (NotFound): the server could not find the requested resource
```

Supporting overriding the operator's binary path can be useful for
custom rebuilds, or using a wrapper, ...

helm-chart/kuberay-operator/templates/deployment.yaml

@@ -53,7 +53,7 @@ spec:
               mountPath: "{{ .Values.logging.baseDir }}"
           {{- end }}
           command:
-            - /manager
+            - {{ .Values.operatorComand }}
           args:
             {{- $argList := list -}}
             {{- $argList = append $argList (include "kuberay.featureGates" . | trim) -}}

helm-chart/kuberay-operator/templates/leader_election_role.yaml

@@ -17,14 +17,6 @@ rules:
   - update
   - patch
   - delete
-- apiGroups:
-  - ""
-  resources:
-  - configmaps/status
-  verbs:
-  - get
-  - update
-  - patch
 - apiGroups:
   - ""
   resources:

helm-chart/kuberay-operator/values.yaml

@@ -88,6 +88,8 @@ featureGates:
   - name: RayClusterStatusConditions
     enabled: false
 
+# Path to the operator binary
+operatorComand: /manager
 
 # Set up `securityContext` to improve Pod security.
 # See https://github.com/ray-project/kuberay/blob/master/docs/guidance/pod-security.md for further guidance.