Update go.mod and go.sum to latest version from networkservicemesh/cm…

…d-nsmgr-proxy@main

PR link: networkservicemesh/cmd-nsmgr-proxy#299

Commit: 213630b
Author: Network Service Mesh Bot
Date: 2022-03-14 05:56:33 -0500
Message:
  - Update go.mod and go.sum to latest version from networkservicemesh/sd…
Signed-off-by: NSMBot <nsmbot@networkservicmesh.io>

apps/nsmgr-proxy/nsmgr-proxy.yaml

@@ -17,7 +17,7 @@ spec:
     spec:
       serviceAccount: nsmgr-proxy-sa
       containers:
-        - image: ghcr.io/networkservicemesh/ci/cmd-nsmgr-proxy:fed5cf9
+        - image: ghcr.io/networkservicemesh/ci/cmd-nsmgr-proxy:213630b
           imagePullPolicy: IfNotPresent
           name: nsmgr-proxy
           ports: