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

…d-nse-istio-proxy@main

PR link: networkservicemesh/cmd-nse-l7-proxy#8

Commit: a7fe6f2
Author: Network Service Mesh Bot
Date: 2022-06-06 05:10:28 -0500
Message:
  - Update go.mod and go.sum to latest version from networkservicemesh/sd…
Signed-off-by: NSMBot <nsmbot@networkservicmesh.io>

examples/nsm_istio/nse-auto-scale/pod-template.yaml

@@ -11,7 +11,7 @@ spec:
   restartPolicy: Never
   containers:
     - name: nse
-      image: ghcr.io/networkservicemesh/ci/cmd-nse-istio-proxy:beee1ea
+      image: ghcr.io/networkservicemesh/ci/cmd-nse-istio-proxy:a7fe6f2
       imagePullPolicy: IfNotPresent
       env:
         - name: SPIFFE_ENDPOINT_SOCKET