Update application version to latest version from networkservicemesh/…

…cmd-nsmgr@master networkservicemesh/cmd-nsmgr#192

networkservicemesh/cmd-nsmgr PR link: networkservicemesh/cmd-nsmgr#192

networkservicemesh/cmd-nsmgr commit message:
commit 8d3c749ade7a4af234d645c5f35cbd75f4f13bb8
Author: Network Service Mesh Bot <60070799+nsmbot@users.noreply.github.com>
Date:   Mon Mar 1 14:25:22 2021 -0600

    Merge 5b7b49b08bedf51afd5054ac47eb286902974fba into f627e6d974708d9099f4f39b940853747c7c38e1

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

apps/nsmgr/nsmgr.yaml

@@ -15,7 +15,7 @@ spec:
         app: nsmgr
     spec:
       containers:
-        - image: networkservicemeshci/cmd-nsmgr:4cb5615a
+        - image: networkservicemeshci/cmd-nsmgr:8d3c749a
           imagePullPolicy: IfNotPresent
           name: nsmgr
           ports: