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 50bf5da77ffbbaefe011ab512d96b5d82457bb9f
Author: Vladimir Popov <vladimir.popov@xored.com>
Date:   Tue Mar 9 20:00:01 2021 +0700

    Manually update to the latest sdk version (#198)

    Signed-off-by: Vladimir Popov <vladimir.popov@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:f593c553
+        - image: networkservicemeshci/cmd-nsmgr:50bf5da7
           imagePullPolicy: IfNotPresent
           name: nsmgr
           ports: