Update go.mod and go.sum to latest version from networkservicemesh/cmd-nsmgr@main (#13495)

PR link: networkservicemesh/cmd-nsmgr#756

Commit: 51c0cad
Author: Network Service Mesh Bot
Date: 2025-07-16 09:22:57 -0500
Message:
  - Update go.mod and go.sum to latest version from networkservicemesh/sdk@main (#756)
PR link: networkservicemesh/sdk#1739
Commit: 3185db7
Author: Laszlo Kiraly
Date: 2025-07-16 16:19:30 +0200
Message:
    - Increase dial timeout in nsmgr (#1739)
* Increase dial timeout in nsmgr
Issue: /issues/13484

Signed-off-by: Laszlo Kiraly <laszlo.kiraly@est.tech>
Signed-off-by: NSMBot <nsmbot@networkservicmesh.io>
Co-authored-by: NSMBot <nsmbot@networkservicmesh.io>

Author: nsmbot

apps/nsmgr/nsmgr.yaml

@@ -17,7 +17,7 @@ spec:
     spec:
       serviceAccount: nsmgr-sa
       containers:
-        - image: ghcr.io/networkservicemesh/ci/cmd-nsmgr:f8a0356
+        - image: ghcr.io/networkservicemesh/ci/cmd-nsmgr:51c0cad
           imagePullPolicy: IfNotPresent
           name: nsmgr
           ports: