Bump PROW GKE Staging images to v0.3.1, bump sidecar images

Author: davidz627

deploy/kubernetes/overlays/prow-gke-staging/controller_images.yaml

@@ -7,8 +7,8 @@ spec:
     spec:
       containers:
         - name: csi-provisioner
-          image: gcr.io/gke-release-staging/csi-provisioner:v1.0.1-rc1
+          image: gcr.io/gke-release-staging/csi-provisioner:v1.0.1-gke.0
         - name: csi-attacher
-          image: gcr.io/gke-release-staging/csi-attacher:v1.0.1-rc1
+          image: gcr.io/gke-release-staging/csi-attacher:v1.0.1-gke.0
         - name: gce-pd-driver
-          image: gcr.io/gke-release-staging/gcp-compute-persistent-disk-csi-driver:v0.3.0-gke.0
+          image: gcr.io/gke-release-staging/gcp-compute-persistent-disk-csi-driver:v0.3.1-gke.0

deploy/kubernetes/overlays/prow-gke-staging/node_images.yaml

@@ -7,6 +7,6 @@ spec:
     spec:
       containers:
         - name: csi-driver-registrar
-          image: gcr.io/gke-release-staging/csi-node-driver-registrar:v1.0.0-rc2
+          image: gcr.io/gke-release-staging/csi-node-driver-registrar:v1.0.1-gke.0
         - name: gce-pd-driver
-          image: gcr.io/gke-release-staging/gcp-compute-persistent-disk-csi-driver:v0.3.0-gke.0
+          image: gcr.io/gke-release-staging/gcp-compute-persistent-disk-csi-driver:v0.3.1-gke.0