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

…d-forwarder-sriov@main

PR link: https://github.com/networkservicemesh/cmd-forwarder-sriov/pull/

Commit: a4b6357
Author: Ed Warnicke
Date: 2021-11-17 16:15:37 -0600
Message:
  - Merge pull request #334 from denis-tingaikin/update-to-latest-sdk
Signed-off-by: NSMBot <nsmbot@networkservicmesh.io>

apps/forwarder-sriov/forwarder.yaml

@@ -18,7 +18,7 @@ spec:
       hostNetwork: true
       dnsPolicy: ClusterFirstWithHostNet
       containers:
-        - image: ghcr.io/networkservicemesh/ci/cmd-forwarder-sriov:3327e17
+        - image: ghcr.io/networkservicemesh/ci/cmd-forwarder-sriov:a4b6357
           imagePullPolicy: IfNotPresent
           name: forwarder-sriov
           securityContext: