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

…d-nsmgr-proxy@main

PR link: networkservicemesh/cmd-nsmgr-proxy#516

Commit: 881ffcd
Author: Denis Tingaikin
Date: 2024-10-08 14:47:19 +0300
Message:
  - Merge pull request #516 from Ex4amp1e/fix-cves
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:04c0e30
+        - image: ghcr.io/networkservicemesh/ci/cmd-nsmgr-proxy:881ffcd
           imagePullPolicy: IfNotPresent
           name: nsmgr-proxy
           ports: