Update go.mod and go.sum to latest version from networkservicemesh/cmd-forwarder-vpp@main

PR link: networkservicemesh/cmd-forwarder-vpp#1331

Commit: 18b8d85
Author: Network Service Mesh Bot
Date: 2025-11-21 10:01:43 -0600
Message:
  - Update from update/networkservicemesh/sdk-sriov (#1331)
Signed-off-by: NSMBot <nsmbot@networkservicmesh.io>

Author: NSMBot

apps/forwarder-vpp/forwarder.yaml

@@ -19,7 +19,7 @@ spec:
       hostNetwork: true
       dnsPolicy: ClusterFirstWithHostNet
       containers:
-        - image: ghcr.io/networkservicemesh/ci/cmd-forwarder-vpp:2004461
+        - image: ghcr.io/networkservicemesh/ci/cmd-forwarder-vpp:18b8d85
           imagePullPolicy: IfNotPresent
           name: forwarder-vpp
           securityContext:

examples/features/select-forwarder/forwarder.yaml

@@ -19,7 +19,7 @@ spec:
       hostNetwork: true
       dnsPolicy: ClusterFirstWithHostNet
       containers:
-        - image: ghcr.io/networkservicemesh/ci/cmd-forwarder-vpp:2004461
+        - image: ghcr.io/networkservicemesh/ci/cmd-forwarder-vpp:18b8d85
           imagePullPolicy: IfNotPresent
           name: my-forwarder-vpp
           securityContext: