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

…d-nsmgr@main

PR link: networkservicemesh/cmd-nsmgr#479

Commit: 921ff3c
Author: Artem Glazychev
Date: 2022-04-08 20:47:19 +0700
Message:
  - Update spire version (#479)
* Update go.mod and go.sum to latest version from networkservicemesh/sdk@main
PR link: networkservicemesh/sdk#1263

Commit: adfd2db
Author: Artem Glazychev
Date: 2022-04-08 19:40:29 +0700
Message:
    - Update configuration to be consistent with spire v1.2.2 (#1263)
Signed-off-by: NSMBot <nsmbot@networkservicmesh.io>

* Update spire version

Signed-off-by: Artem Glazychev <artem.glazychev@xored.com>
Signed-off-by: NSMBot <nsmbot@networkservicmesh.io>

apps/nsmgr/nsmgr.yaml

@@ -17,7 +17,7 @@ spec:
     spec:
       serviceAccount: nsmgr-sa
       containers:
-        - image: ghcr.io/networkservicemesh/ci/cmd-nsmgr:2707a80
+        - image: ghcr.io/networkservicemesh/ci/cmd-nsmgr:921ff3c
           imagePullPolicy: IfNotPresent
           name: nsmgr
           ports: