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

…d-forwarder-vpp@main

PR link: networkservicemesh/cmd-forwarder-vpp#421

Commit: 783a813
Author: Ed Warnicke
Date: 2021-12-03 14:12:30 -0600
Message:
  - Update VPP to match latest Calico-VPP patches (#421)
edwarnicke/govpp#46
Signed-off-by: NSMBot <nsmbot@networkservicmesh.io>

apps/forwarder-vpp/forwarder.yaml

@@ -18,7 +18,7 @@ spec:
       hostNetwork: true
       dnsPolicy: ClusterFirstWithHostNet
       containers:
-        - image: ghcr.io/networkservicemesh/ci/cmd-forwarder-vpp:fd8290c
+        - image: ghcr.io/networkservicemesh/ci/cmd-forwarder-vpp:783a813
           imagePullPolicy: IfNotPresent
           name: forwarder-vpp
           securityContext: