Update application version to latest version from networkservicemesh/…

…cmd-nsmgr@master networkservicemesh/cmd-nsmgr#221

networkservicemesh/cmd-nsmgr PR link: networkservicemesh/cmd-nsmgr#221

networkservicemesh/cmd-nsmgr commit message:
commit 799f874edc6f27faf33e6cca1886d1058606718e
Author: Network Service Mesh Bot <60070799+nsmbot@users.noreply.github.com>
Date:   Wed Mar 31 04:42:55 2021 -0500

    Merge 8120a1af15929c9a24ff60c0e3ba88df365f1b4f into afb48d35f4f14bdb8bd9e9983c5ec9e00d60ab91

Signed-off-by: NSMBot <nsmbot@networkservicmesh.io>

apps/nsmgr/nsmgr.yaml

@@ -15,7 +15,7 @@ spec:
         app: nsmgr
     spec:
       containers:
-        - image: networkservicemeshci/cmd-nsmgr:afb48d35
+        - image: networkservicemeshci/cmd-nsmgr:799f874e
           imagePullPolicy: IfNotPresent
           name: nsmgr
           ports: