build: prepare of 3.13.0

This commit updates the required templates
and document for the 3.13.0
release.

Signed-off-by: Rakshith R <rar@redhat.com>

deploy/rbd/kubernetes/csi-rbdplugin.yaml

@@ -28,8 +28,7 @@ spec:
             capabilities:
               add: ["SYS_ADMIN"]
             allowPrivilegeEscalation: true
-          # for stable functionality replace canary with latest release version
-          image: quay.io/cephcsi/cephcsi:canary
+          image: quay.io/cephcsi/cephcsi:v3.13.0
           args:
             - "--nodeid=$(NODE_ID)"
             - "--pluginpath=/var/lib/kubelet/plugins"
@@ -135,7 +134,7 @@ spec:
           securityContext:
             privileged: true
             allowPrivilegeEscalation: true
-          image: quay.io/cephcsi/cephcsi:canary
+          image: quay.io/cephcsi/cephcsi:v3.13.0
           args:
             - "--type=liveness"
             - "--endpoint=$(CSI_ENDPOINT)"