Update application version to latest version from networkservicemesh/…

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

networkservicemesh/cmd-nsmgr PR link: https://github.com/networkservicemesh/cmd-nsmgr/pull/

networkservicemesh/cmd-nsmgr commit message:
commit a42917e3f4e50db431335bb93459fe58bac9b9bb
Author: Denis Tingaikin <49399980+denis-tingaikin@users.noreply.github.com>
Date:   Sat Feb 6 03:40:01 2021 +0700

    Manually update to latest sdk (#178)

    Signed-off-by: denis-tingajkin <denis.tingajkin@xored.com>

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

apps/nsmgr/nsmgr.yaml

@@ -15,7 +15,7 @@ spec:
         app: nsmgr
     spec:
       containers:
-        - image: networkservicemeshci/cmd-nsmgr:b9e125fc
+        - image: networkservicemeshci/cmd-nsmgr:a42917e3
           imagePullPolicy: IfNotPresent
           name: nsmgr
           ports: